Remove a connection pool dependency from main project...

and add it as a separate module.
Set version as 0.1.1.
Add c3p0 connection pool interface as separate module.
Update changelog on readme.
Remove jdk6 from .travis.yml
Remove from documentation support for jdk6.
Increase version number on documentation.
Add proper documentation for c3p0 new installation/usage.
Fix project url of c3p0 module.