v1.1.0 (release)

[new] option to reduce panel menus margins/paddings (bookmarks,
history...)
[fix] CTRs cui-area buttons appearance
[fix] squared tabs: text color option
[change] improved support for 'ThePuzzlePiece' add-on (thx to
Quicksaver)
[change] switched all options to observer/listener method
[change] fallback system to catch label change/removal *
* This prevents Mozilla from breaking CTR by removing/changing
internal label references like on Nightly 2014-01-29 & 2014-02-01.