Fix: Install PowerShell files when $PROFILE isn't in $HOME
Squashed 'powershell/Modules/posh-git/' changes from 22f4e77..c481e5b

c481e5b Info about trailing exclamation mark
3db1e6e Fix branch name when in sync with upstream
6566f3c Implement describe style setting and functionality.
9d624ca maybe fix?
f1c3820 Reset Get-LocalOrParentPath() checkin name
72fde6f Use -LiteralPath to handle paths with []
02a3d88 Avoid polluting $error on module load
c282807 Removing code to add a single ssh key if none are provided.
36d072f Update readme to assume devs are on 64-bit Windows
8aecd99 Auto complete feature/release/hotfix branches in git flow.

git-subtree-dir: powershell/Modules/posh-git
git-subtree-split: c481e5b4f494578708a25587d503c38698a68806
Merge commit '8dc8e0e96181dc243600f488c3a397168a43a6f6'