* + clone github repository to local automaticly
* + the plugin configuration page to set the local git repositores path.
* + show the scm url in the repository page via ZhuangBiaoWei
* + show the github url in the repository page
[doc] minor changes
German lang file

Signed-off-by: jdlx <github@rexdev.de>
Merge pull request #1 from jdlx/master

german lang file added..
Merge branch 'master' of git://github.com/snowyu/redmine_github_hook

Conflicts:
	init.rb
Fix cloning of repo on before_save.

Support any remote Git repo, not just Github.
Use correct repo URL when updating repo.

Set GIT_DIR to the local repo (root_url), not the remote one (url).
Support multiple repositories per project