Git

Allowing the sync directory to be different from the git directory. Previously it was assumed that app is the root of the git repo. 

config to be placed on the app root collection now reads : 
```
<git xmlns="http://exist-db.org/eXide/git">
    <syncDir>/home/yourUserName/Directory for syncing the app</syncDir>
    <appDir>/home/yourUserName/Directory where git resides</appDir>
</git>
```
note change of name from `workingDir` to `syncDir`
Cheers
C.