Merge pull request #3 from LukeOwncloud/master

support charset definition in content-type of vcard
Restore XPI_ARCHIVE file location
Fixed broken merged patch.
Bump to 17.0.5
Added header If-None-Match for compatability with Zimbra.
Merge pull request #4 from fenfir/master

Added header to put for vcards
Bumped version number
Added Hungarian translation
Merge pull request #5 from PtY1968/master

Added Hungarian translation
error output in case of wrong URL