Adding option for persistent connections to DB class. Defaults to false to avoid a bug in PHP 5.4.
https://bugs.php.net/bug.php?id=63176
Updating Changelog.
Add: Catch and reconnect lost MySQL connections.
Potential fix for hanging tmux monitor.php query (restart tmux session)
Additional categorization improvements
Alternative syntax for regex for those having problems.
Move rewriting docs to docs directory.
Point nginx rewriting doc to the wiki.
Multiple categorization changes / change to predbft
Many changes (see Changelog)
Add the reconnect on MySQL has gone away to exec/queryexec.
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.
Manually updating versions.
Update sqlpatch values in settings data file.
Testing of ProcessAdditional.
Delete RAR file after extracting it using UNRAR.
Categorization improvements for other usenet groups