Nilled delegate on dealloc.
Fixed two bugs:

Fixed bug where formula dependencies would be duplicated on display.
Fixed bug where deprecated formulas would cause the app to crash.
Disables toolbar buttons when opening doctor or updater.
Fixed ambiguous layout warning.
Merge pull request #33 from tanB/ambiguous-layout-fix

Fixed ambiguous layout warning.
Fixed error indicator on custom homebrew path window.
Merge remote-tracking branch 'origin/master'
Fixed warning in cell width.
Changed `BPHomebrewManager` delegate storage to `unsafe_unretained`.
Enabled proxy support. Still needs testing.
Removed light content style. Added https_proxy environment variable.
Removed other light content parameter.
Removed translatesAutoresizingMaskIntoConstraints="NO" tag from splitView.
‘Latest Version’ column in Outdated view. Fixied bug #23 and proposal #34
fix outdated names substr
#18 UI freezes while updating homebrew formulas or packages
Merge pull request #37 from abrausch/master

#18 UI freezes while updating homebrew formulas or packages
Merge pull request #36 from maximgavrilov/master

‘Latest Version’ column in Outdated view. Fixied bug #23 and proposal #34
Improved table view columns width when showing/hiding. Made static `BPFormula` method more readable.
Advanced to version 1.0.4.