updated GUI strings.
branded about dialog box
updated build targets to peerunity-qt and peerunityd
added PeerUnity icons
added tooltip icons
changed PPCoin to Peercoin
changed the executable target back to PPCoin
sharped up tooltip icon
Fix typo in closing xml translation node
Use default translation file for french locales.

As 'fr_FR' and 'fr_CA' locale files are identical, use only one default 'fr' file.
It also allows other french locales (fr_BE, fr_CH, etc...) to have the french translations without having to duplicate the file for every locale.
Update locale files to add the new strings.
set version label to use the Git tag build name
the version displayed in the about dialog is based on the last tag in
git
changed product string from PeerUnity to Peerunity
Merge pull request #31 from BlueMeanie/branding-issues-6

Branding issues 6
Merge pull request #32 from jmcfarlane/invalid-xml

Fix typo in closing xml translation node
Merge pull request #33 from glv2/locale-fr

Use default translation file for french locales.