Merge pull request #167 from s0undt3ch/develop

Allow a bin host to be used for Gentoo boostraps.
Updated testes suite to use salt-testing.
Tiny fix TEMP_CONFIG_DIR -> TEMP_KEYS_DIR in preseed function definition
Salt testing parsers now print the overall results header.
Install salt-testing in travis.
Moved PKI_DIR definition to the script head
We need sudo perms
Use pip mirrors.
No line break
Merge pull request #171 from kozhukalov/temp_keys_dir

Tiny fix TEMP_CONFIG_DIR -> TEMP_KEYS_DIR in preseed function definition
Merge pull request #172 from s0undt3ch/features/salt-testing

Make use of salt-testing