Updating POM

Use correct location of maven xsd
Update to mybatis parent 22-SNAPSHOT
Update to mybatis 3.2.8
Update hsqldb to 2.3.2
Removed exclusions on log4j.  Those were left over from prior version
where log4j defined dependencies incorrectly.  It is no longer an issue.
ignore velocity.log
Switch tabs to spaces
Added missing serialization version uid
Removed unused import
Add type to iterator
Switch readme to markdown

Added badge for maven and travis ci
Added link to location of documentation
Added mybatis ninja
Merge pull request #16 from hazendaz/master

Bringing Velocity-scripting up to date