Updates and corrections to pt_PT language files

Translation, updates, and corrections to pt_PT language files
Merge branch 'master' of git://github.com/eucosta/totalfinder-i18n

Conflicts:
	plugin/pt_PT.lproj/CopyPathMenu.strings
	plugin/pt_PT.lproj/CutAndPaste.strings
	plugin/pt_PT.lproj/DockProgressBar.strings
	plugin/pt_PT.lproj/PublishBox.strings
	plugin/pt_PT.lproj/TotalFinder.strings
propagate missing strings to pt_PT
Merge pull request #264 from rantom/master

New strings
fix constraints in Tabs Preferences panel
cleanup constrains
improve readme as suggested by Mike
update readme.pdf as suggested by Mike