Appeals Clang, adds functionality to toggle popover from the bar button#32

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evadne wants to merge 6 commits intomattgemmell:masterfrom

Commits on Nov 16, 2010

Ignores various OS X noise
Evadne Wu
committed
fixes a null initial value bug
Evadne Wu
committed

Commits on Dec 6, 2010

Assigns default values to leadingCorners, trailingCorners so Clang is happy
Evadne Wu
committed

Commits on Jan 9, 2011

Allows toggling the popover from the bar button.
Evadne Wu
committed

Commits on Jan 24, 2011

revises several no-initial-value-for-synthesized-property issues as reported by Clang, fixes leaks
Evadne Wu
committed

Commits on Feb 1, 2011

non-synthesized-by-default bugfix
Evadne Wu
committed