Big merge for stable release of 2.2

- Improved the code for storing the
- Fixed sort arrows not showing in the column header in vertical layout
- Restyle/changed the divider between the notes list and note textview
- Improved handling of collapsing/expanding the notes list
- Updated some deprecated methods.
- Improved support/stability on 10.9. (for example turned off
ResponsiveScrolling as the code doesn’t handle it properly yet).
- Fixed some localization stuff (menu items from English not showing up
in other languages)
- Improved 64-bit compatibility
- Fixed a lot of static analyzer and compiler warnings (see init
methods not properly setting self==[super init])