Fix remaining refs to pkg.compare

Pull request #7636 fixed a regression caused by refs to a removed
execution function 'pkg.compare'. This function was moved to salt.utils
and made a common interface so that version comparison could be done
elsewhere in the salt codebase, and these refs were missed when doing
the cleanup.
Add an initial stub for loading auth data from external sources
Added missing arguments check
Single vs double backtick
Updated for new release

Note: this change will primarily have an effect on daily launchpad builds and
then builds for the ubuntu ppa.
Merge pull request #7651 from joehealy/debian_updates

Updated for new release
Merge pull request #7646 from holmboe/patch-2

Single vs double backtick
Checking for newline at EOF in modules.file.append()
Fixed empty file case in modules.file.append()

Lines are simply inserted at the beginning of the file for empty files.
Merge pull request #7469 from ranl/win_servermanager

Using shell='powershell' in servermanager/rdp modules
Merge remote-tracking branch 'upstream/develop' into sam_20131001
fix documentation for profiles/nics; add get/set parameter funcs
ddns: remove debug log message
lxc: actually fix docs and add get/set parameter funcs
Merge pull request #7642 from terminalmage/pkg-compare-regression-fix

Fix remaining refs to pkg.compare
s/existant/existent/
Merge pull request #7660 from rgbkrk/patch-1

s/existant/existent/
Merge pull request #7657 from mgwilliams/lxc

LXC bug fix
Merge pull request #7629 from jmagnusson/yamlfilterfix

YAML jinja2 filter fix
Added function args to message body