Update version for --list-lang  support.
Added install and uninstall hooks to take care of admin setting
variables.
Merge pull request #2 from daniel-dgi/7.x

Added install and uninstall hooks to take care of admin setting
Merge pull request #1 from nigelgbanks/7.x-update-version-for-list-language-support

Update version for --list-lang  support.