Merge pull request #1429 from Kazark/master

:vs not :vsp is the shortest abbrev for :vsplit
Errors should break key map processing

When an error is encountered processing a key which is a part of a key
mapping the remainder of the mapping should not be processed.  This is
documented in :help key-mapping, search for error.

closes #1435
Fix end block parsing

Was only matching end elements which had letters only, need to match
letters and digits

closes #1439
Fix build issue

Allows for build again on 2010 only.  Need to switch to some other
installs to verify the behavior
Added a better comment
Fix a deployment script issue
Fix AppVeyor issue
Merge pull request #1441 from jaredpar/fixes-build

Fixes build
Added register info to command line

closes #1434
Fix a unit test failure