minor issue
minor
Mark serializable
Fix an issue with ArkRef
Update README.md

Jenkins exposes the current status of the master branch as an image in a fixed URL. We put this URL into the README so that developers can see the current state of the build.
mysql dependenc was added to lexicalminer excluding version
Merge pull request #342 from adlerm/master

mysql dependenc was added to lexicalminer excluding version
Update README.md
Update README.md
Merge remote-tracking branch 'upstream/master'
Merge pull request #343 from astern7/master

some relatively minor issues