updated JavaDocs
updated dependency versions
removed some useless code in DBConnection manager, fixed a bug in DBConnection pool related to issue #13, added unit tests
fixed travis config for pull requests
update description
url and version update [ci skip]
updates, cleanup, minor fixes
image url update [ci skip]
updated xeiam url
updated xeiam url
fixed error message
updated method visibility
rollback called in freed connections
uncommented unit tests
change pool from Vector to List interface
updated header
update dependecies
[maven-release-plugin] prepare release yank-2.3.0
[maven-release-plugin] prepare for next development iteration
update versions