move the tmp generated test files from '/' to '/tmp_test_files'
Merge pull request #500 from PasaLab/TACHYON-206

[TACHYON-206] move the tmp generated test files from '/' to '/tmp_test_files'
tweak run tests folder names
Merge branch 'master' of https://github.com/PasaLab/tachyon

Conflicts:
	bin/tachyon