Added some basic :delmarks tests
Implemented the :delmarks command

This implements the :delmarks command.   It's not 100% complete because
VsVim doesn't currently support numbered marks.  Getting that support
online after it's added though is pretty trivial

closes #1192
Fix conversion from font size in points to pixels.
Merge pull request #1224 from ricksladkey/fixes-font-size

Fix conversion from font size in points to pixels.
Merge pull request #1225 from jaredpar/fixes-1192

Fixes 1192
Add 'whichwrap' option and handle 'b,s,<,>' suboptions.
Adapt CharLeft/CharRight tests and add SpaceRight tests.
Document SpaceRight tests.
Refactor GetNextPoint etc. into GetRelativePoint. Use it in SearchService.
Add SpaceLeft tests.
Adapt CharLeft/CharRight tests and add SpaceRight tests.
Document SpaceRight tests.
Refactor GetNextPoint etc. into GetRelativePoint. Use it in SearchService.
Add SpaceLeft tests.
Merge pull request #1226 from ricksladkey/fixes-whichwrap

Support for 'whichwrap' option
Merge remote-tracking branch 'upstream/master'