Fix random bug when workstation_name is < 6 chars

When the local workstation name is less than 6 characters, remote
authentication against a Windows 2008r2 WinRM service always fails. This
doesn't seem to affect authentication against IIS's negotiate
implementation.
Land #3363, Workstation Length Auth Bug
Note about EXE::Custom
Add a small note to bypassuac_injection concerning EXE::Custom
Test adobe_flash_pixel_bender_bof on Safari 5.1.7

Added browser-requirement for Safari after successful test using Safari 5.1.7 with Adobe Flash Player 13.0.0.182 running on Windows 7 SP1.
Land #3375, @bugch3ck's support for Safari
Add URL
[SeeRM #8803] Avoid false positives when checking fb_cnct_group
Land #3378 - Add Reference for katello_satellite_priv_esc
Delete unnecessary line
Land #3379, [FixRM #8803] - Improve fb_cnct_group check