Translate new strings and update old ones

Translated the new strings and updated some of the older ones to be more user-friendly.
Revert "Translate new strings and update old ones"

This reverts commit da2bc7bc1f5bef3cb849b509e57018a7a1416fa9.
Reverted because editing on the Github website introduced whitespace
changes.
Translate new strings and update some old ones

Translated the new strings and made some updates to the old ones to make
them more user-friendly.
Merge pull request #30 from corneliudascalu/master

Translated new strings and updated some old ones