2.8 Release

I wanted to say thank you for all the guys who were submitting their pull requests.
Thank you @ilyagory , @thingNumber1 , @Skazzino , @shimscharf , @tom29.
@ricwein I appreciate you support efforts!
You guys rock!

Changelog:

1. Multiple databases support
2. Added autoreconnect
3. Fix issue where orderBy strips spaces from fieldname
4. Remove unneeded destructor
5. Add socket option to constructor
6. Added a function to disconnect from mysql server
7. Adding ORDER BY REGEXP possibilites
8. dbObject: Added "Hidden Fields"
9. Multiple bugfxes and documentation update