Replaced redundant non-retina graphics with OS X built-in ones
Made the thread "fake column" resizable
re allow dragging of rows + avoid too tiny column width
Refactored column resizing code to avoid impacting all cells of all windows

Now redirects to the window controller, so that each window has its own
thread column size.
Beware: introduced a dependency between LoggerMessageCell and
LoggerWindowController
Merge pull request #74 from wmanth/retina

Replaced redundant non-retina graphics with OS X built-in ones
Merge pull request #78 from altimac/master

Allow resizing of the "fake thread column"
Update CONTRIBUTORS
Adds additional checks to NULL pointers

Checks are added if some data structures are not NULL. If they are null a debug message is printed.
Adds podspec
Adds another if branch for one static analyzer warning
Merge pull request #79 from rsobik/static_analyzer_fixes

Static analyzer fixes
Bugfix: resizeable thread column introduced a crasher while displaying a fake message cell in the Preferences window
Dropped an unused method that was triggering deprecated call warning at compile time
Merge branch 'master' into console-logging

Conflicts:
	Client Logger/iOS/LoggerClient.m