THIS PATCH WILL INTENTIONALLY FAIL TRAVIS.CI, THIS IS BECAUSE TESTS HAVE BEEN BROKEN FOREVER.  The scripts in the test directory were manipulating the path by adding the build src directory first then leaving the rest of the path, this appeared to work if you have aircrack-ng installed on the system because the make check target was only building aircrack-ng and _nothing_else_ so calls to airdecap-ng and airolib-ng would fall through to the system path and use the installed versions.  This patch FIXES the tests to actually run properly, however, since the tests haven't been running properly at all the airdecap-ng tests appear to be failing -Love, Zero

git-svn-id: http://svn.aircrack-ng.org/trunk@2335 28c6078b-6c39-48e3-add9-af49d547ecab
missed one cleanup from previous commit, sorry

git-svn-id: http://svn.aircrack-ng.org/trunk@2336 28c6078b-6c39-48e3-add9-af49d547ecab