Update ruby-hashie to 3.4.0.
## 3.4.0 (02/02/2014)
* [#271](https://github.com/intridea/hashie/pull/271): Added ability to define defaults based on current hash - [@gregory](https://github.com/gregory).
* [#247](https://github.com/intridea/hashie/pull/247): Fixed #stringify_keys and #symbolize_keys collision with ActiveSupport - [@bartoszkopinski](https://github.com/bartoszkopinski).
* [#249](https://github.com/intridea/hashie/pull/249): SafeAssignment will now also protect hash-style assignments - [@jrochkind](https://github.com/jrochkind).
* [#251](https://github.com/intridea/hashie/pull/251): Added block support to indifferent access #fetch - [@jgraichen](https://github.com/jgraichen).
* [#252](https://github.com/intridia/hashie/pull/252): Added support for conditionally required Hashie::Dash attributes - [@ccashwell](https://github.com/ccashwell).
* [#256](https://github.com/intridia/hashie/pull/256): Inherit key coercions - [@Erol](https://github.com/Erol).
* [#259](https://github.com/intridia/hashie/pull/259): Fixed handling of default proc values in Mash - [@Erol](https://github.com/Erol).
* [#260](https://github.com/intridia/hashie/pull/260): Added block support to Extensions::DeepMerge - [@galathius](https://github.com/galathius).
* [#254](https://github.com/intridea/hashie/pull/254): Added public utility methods for stringify and symbolize keys - [@maxlinc](https://github.com/maxlinc).
* [#261](https://github.com/intridea/hashie/pull/261): Fixed bug where Dash.property modifies argument object - [@d_tw](https://github.com/d_tw).
* [#264](https://github.com/intridea/hashie/pull/264): Methods such as abc? return true/false with Hashie::Extensions::MethodReader - [@Zloy](https://github.com/Zloy).
* [#269](https://github.com/intridea/hashie/pull/269): Add #extractable_options? so ActiveSupport Array#extract_options! can extract it - [@ridiculous](https://github.com/ridiculous).
* Your contribution here.
## 3.3.2 (11/26/2014)
* [#233](https://github.com/intridea/hashie/pull/233): Custom error messages for required properties in Hashie::Dash subclasses - [@joss](https://github.com/joss).
* [#231](https://github.com/intridea/hashie/pull/231): Added support for coercion on class type that inherit from Hash - [@gregory](https://github.com/gregory).
* [#228](https://github.com/intridea/hashie/pull/228): Made Hashie::Extensions::Parsers::YamlErbParser pass template filename to ERB - [@jperville](https://github.com/jperville).
* [#224](https://github.com/intridea/hashie/pull/224): Merging Hashie::Mash now correctly only calls the block on duplicate values - [@amysutedja](https://github.com/amysutedja).
* [#221](https://github.com/intridea/hashie/pull/221): Reduce amount of allocated objects on calls with suffixes in Hashie::Mash - [@kubum](https://github.com/kubum).
* [#245](https://github.com/intridea/hashie/pull/245): Added Hashie::Extensions::MethodAccessWithOverride to autoloads - [@Fritzinger](https://github.com/Fritzinger).
## 3.3.1 (8/26/2014)
* [#183](https://github.com/intridea/hashie/pull/183): Added Mash#load with YAML file support - [@gregory](https://github.com/gregory).
* [#195](https://github.com/intridea/hashie/pull/195): Ensure that the same object is returned after injecting IndifferentAccess - [@michaelherold](https://github.com/michaelherold).
* [#201](https://github.com/intridea/hashie/pull/201): Hashie::Trash transforms can be inherited - [@fobocaster](https://github.com/fobocaster).
* [#189](https://github.com/intridea/hashie/pull/189): Added Rash#fetch - [@medcat](https://github.com/medcat).
* [#200](https://github.com/intridea/hashie/pull/200): Improved coercion: primitives and error handling - [@maxlinc](https://github.com/maxlinc).
* [#204](https://github.com/intridea/hashie/pull/204): Added Hashie::Extensions::MethodOverridingWriter and Hashie::Extensions::MethodAccessWithOverride - [@michaelherold](https://github.com/michaelherold).
* [#205](http://github.com/intridea/hashie/pull/205): Added Hashie::Extensions::Mash::SafeAssignment - [@michaelherold](https://github.com/michaelherold).
* [#206](http://github.com/intridea/hashie/pull/206): Fixed stack overflow from repetitively including coercion in subclasses - [@michaelherold](https://github.com/michaelherold).
* [#207](http://github.com/intridea/hashie/pull/207): Fixed inheritance of transformations in Trash - [@fobocaster](https://github.com/fobocaster).
* [#209](http://github.com/intridea/hashie/pull/209): Added Hashie::Extensions::DeepFind - [@michaelherold](https://github.com/michaelherold).
* [#69](https://github.com/intridea/hashie/pull/69): Fixed regression in assigning multiple properties in Hashie::Trash - [@michaelherold](https://github.com/michaelherold), [@einzige](https://github.com/einzige), [@dblock](https://github.com/dblock).
## 3.2.0 (7/10/2014)
* [#164](https://github.com/intridea/hashie/pull/164), [#165](https://github.com/intridea/hashie/pull/165), [#166](https://github.com/intridea/hashie/pull/166): Fixed stack overflow when coercing mashes that contain ActiveSupport::HashWithIndifferentAccess values - [@numinit](https://github.com/numinit), [@kgrz](https://github.com/kgrz).
* [#177](https://github.com/intridea/hashie/pull/177): Added support for coercing enumerables and collections - [@gregory](https://github.com/gregory).
* [#179](https://github.com/intridea/hashie/pull/179): Mash#values_at will convert each key before doing the lookup - [@nahiluhmot](https://github.com/nahiluhmot).
* [#184](https://github.com/intridea/hashie/pull/184): Allow ranges on Rash to match all Numeric types - [@medcat](https://github.com/medcat).
* [#187](https://github.com/intridea/hashie/pull/187): Automatically require version - [@medcat](https://github.com/medcat).
* [#190](https://github.com/intridea/hashie/issues/190): Fixed `coerce_key` with `from` Trash feature and Coercion extension - [@gregory](https://github.com/gregory).
* [#192](https://github.com/intridea/hashie/pull/192): Fixed StringifyKeys#stringify_keys! to recursively stringify keys of embedded ::Hash types - [@dblock](https://github.com/dblock).
## 3.1.0 (6/25/2014)
* [#169](https://github.com/intridea/hashie/pull/169): Hash#to_hash will also convert nested objects that implement to_hash - [@gregory](https://github.com/gregory).
* [#171](https://github.com/intridea/hashie/pull/171): Include Trash and Dash class name when raising `NoMethodError` - [@gregory](https://github.com/gregory).
* [#172](https://github.com/intridea/hashie/pull/172): Added Dash and Trash#update_attributes! - [@gregory](https://github.com/gregory).
* [#173](https://github.com/intridea/hashie/pull/173): Auto include Dash::IndifferentAccess when IndiferentAccess is included in Dash - [@gregory](https://github.com/gregory).
* [#174](https://github.com/intridea/hashie/pull/174): Fixed `from` and `transform_with` Trash features when IndifferentAccess is included - [@gregory](https://github.com/gregory).
## 3.0.0 (6/3/2014)
**Note:** This version introduces several backward incompatible API changes. See [UPGRADING](UPGRADING.md) for details.
* [#150](https://github.com/intridea/hashie/pull/159): Handle nil intermediate object on deep fetch - [@stephenaument](https://github.com/stephenaument).
* [#146](https://github.com/intridea/hashie/issues/146): Mash#respond_to? inconsistent with #method_missing and does not respond to #permitted? - [@dblock](https://github.com/dblock).
* [#152](https://github.com/intridea/hashie/pull/152): Do not convert keys to String in Hashie::Dash and Hashie::Trash, use Hashie::Extensions::Dash::IndifferentAccess to achieve backward compatible behavior - [@dblock](https://github.com/dblock).
* [#152](https://github.com/intridea/hashie/pull/152): Do not automatically stringify keys in Hashie::Hash#to_hash, pass `:stringify_keys` to achieve backward compatible behavior - [@dblock](https://github.com/dblock).
* [#148](https://github.com/intridea/hashie/pull/148): Consolidated Hashie::Hash#stringify_keys implementation - [@dblock](https://github.com/dblock).
* [#149](https://github.com/intridea/hashie/issues/149): Allow IgnoreUndeclared and DeepMerge to be used with undeclared properties - [@jhaesus](https://github.com/jhaesus).
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