Documenting liquibase.change package and finalizing APIs
Merge remote-tracking branch 'origin/master'
renamed AbstractChangeTest to StandardChangeTest so I can create an actual AbstractChangeTest
Finished documentation, testing, and vetting of AbstractChange Object
Cleaned up exceptions on Change and AbstractChange
renamed test so we can have a specific test for AbstractSQLChange
Documented and tested AbstractSQLChange
Documented and tested ChangeFactory