Perspectives - Update code to retrieve invalid certificate info

This code changed in Firefox v20.
Fixes GH 77
Localization - Remove the word "Firefox" from notary strings

This is incorrect since we support multiple browsers (Seamonkey too)
Perspectives - Increase version compatibility for Firefox
Perspectives - Increase version for 4.3.4 release
CHANGELOG - Update for 4.3.4
Pers_statusbar - Temporarily hide the 'About' dialog until it can be localized
Merge pull request #78 from daveschaefer/master

Bug fixes for 4.3.4