Merge pull request #147 from s0undt3ch/develop

[unittesting] Minor fixes regarding CentOS 5.7 and HTML reports
Possessive version of pronoun it has no apostrophe
Merge pull request #148 from kaithar/usage-text-fix

Possessive version of pronoun it has no apostrophe
Doing start in the background can cause problems, so let's not suggest it.
Merge pull request #150 from kaithar/Remove-bad-ampersand

Doing start in the background can cause problems, so let's not suggest it
Don't install FreeBSD pkgng if already installed.

Should prevent issues of bootstrap-salt.sh causing pkg installation
failures when pkg is already present and configured. It will however
still complain if the configured PACKAGESITE does not have py-salt
available.
Fix FreeBSD git installation.

Move git installation so that it is installed before the git clone is
performed.
Merge pull request #151 from geoffgarside/freebsd-pkg-detect

Don't install FreeBSD pkgng if already installed.
Merge pull request #152 from geoffgarside/freebsd-git-install

Fix FreeBSD git installation.
Add SuSE SLES SP1 to the list of distributions requiring `-P`.