Alternative syntax for regex for those having problems.
Move rewriting docs to docs directory.
Point nginx rewriting doc to the wiki.
Merge branch 'dev' of github.com:nZEDb/nZEDb into dev

Conflicts:
	nzedb/build/nZEDb.xml
Fixing comments for PredDb schema.
Changing field groupid to group_id in tables and code.
Updating Changelog.