Upstream changes:
0.4.1 Version 2014-11-22
Add new app sequence, you can use it to create sequence value.
Fix generic version parameter passing to obj.save() bug, only when version is not False will be passed
Improve nginx and supervisor config content for deployment
Fix multi expose expose('/') and expose('') for the same URL bug
Add strict_slashes=False to Map instance.
Add Reference() with reference_class is None, it can replace SelfReference
Add ManyToMany() with reference_class is None, it can implements self manytomany relationship.
Fix ManyToMany() with through model references to the same model bug
Add #{appname} support in settings.ini
Add support for head.js
Fix template try bug
0.4 Version 2014-9-17
Refactor template with tornado
Fix Pickle default value process bug, will not convert empty value to ''
Add staticize command
Resume DEBUG_TEMPLATE option for template
Fix count implement when there is group_by, limit, join, it'll use select count(*) from (select * from table)
Add debug parameter for tracing i18n language
ORM add duplication support, so you can set it in CONNECTIONS options, it'll make definition of Model engine simple
Add set_session() function to orm
Add fieldname parameter to Property, and fix column mapping process between property and table field
Add -z paramter to load and loadtable command, thanks for linuxr
Fix uliweb load for csv format bug, thanks for taogeT
Fix tmp/templates_temp creation
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