Merge pull request #237 from afarra/master

Add batch operations for tagging/deleting bookmarks & tags
Anti alias page overlaying
Merge pull request #240 from boussouira/overlay-fix

Anti alias page overlaying
make bookmark database adapter in activity instead of opening it on each operation.  code cleanup.
French Translation
french translation
sura name fix :(
Merge pull request #244 from yasserkad/master

French translation
Fix: can't select untagged bookmarks from tags tab
In tags tab, allow deleting untagged bookmarks directly by deleting it from the "Untagged" category