Removal of Plx JT, using HTH in ITs
Fixing paths and decoupling
getTestFile to not return null

If file does not exists. Use file.exists or file.isFile
to check it's existence (as already done everywhere except
on one place). On many other affected places, the code
is not even prepared for nulls, being NPE prone, so this
change is not affecting them.
Using new builder iface
Fixing props
Fix props for port
Fix properties
fixed props
Cleanup
Fixing IT

The filter was eating response, server was
using bad port, and in initial change the
excpectation was broken too
Another prop fix

Seemingly, IT writers were consistently
mixing up properties :)
P2 "secure" HTH was missed a bit

Cleanup made, reusing the "non-secure" to be sure
we mount the same stuff, and are adding only securty
bits
Merge pull request #455 from sonatype/hth-in-tests-its

Using HTH in ITs