Change sidebar root to `/Volumes` on OS X
Apply new coding conventions to file_browser.h
Rename file_browser.* to FileBrowser.*
FileBrowser rename fixes
Merge pull request #1131 from Lukas-W/stable-1.1-iss1058

Change Sidebar file browser root to `/Volumes` on OS X
Make start/end/loop knobs all responsive
Make loop end move with sample end
Invert loop button pixmaps
Merge pull request #1136 from tresf/stable-1.1

Make start/end/loop knobs responsive to each other