Initial TestBox support
Move some helper logic to generic script

Some of the repeated code for setting up the test environment
has now been moved into the generic helper, also supports
different test frameworks.
Add TestBox/MXUnit to matrix
Fix mxunit copy
Fix test framework matrix
Get test framework URLs right way around!
Fix bad paths in helper
Fix pathing and replacement issues
Move Railo to cfml-ci S3
Implement new TestBox version with ant properties

TestBox tests should now properly be detected to
pass/fail.
Merge branch 'feature/testbox'
Update local Railo 4.1 filename