- unused variables removed
- unused functions removed
- uninitialized variables checked
- missing return statements added
- missing function return types added
- added parentheses around assignment and
&& in || when suggested by gcc
* src/mh.c
* src/folder.c
replaced direct calls to folder->scan_tree
with folder_scan_tree and restore folder
prefs in this function. The folder should
not have to deal with them.
( Should now work for all folder types )
