Clean some codes.
Added unit test command ":xvimtest" (but tests are not implemented)
Implemented CTRL-w in insert mode
The problem now has is that Vim does not seems copy the deleted text
into register but XVim does
Merge pull request #263 from marlonandrade/master

bugfix on NSEvent charactersIgnoringModifiers returing empty string with some international keyboards
Fix Issue #230 - Removed yank register code.

Equal evaluator should not use the yank register or copy text to the system clipboard.
Merge pull request #269 from weaksauce/fixEqualToYankRegister

Fix Issue #230 - Removed yank register code.
Delete some unused methods
Merge branch 'master' into refactoring

Conflicts:
	XVim.xcodeproj/project.pbxproj
Fix issue #274 - Cannot map '<DEL>'
Merge pull request #275 from ybian/master

Fix issue #274 - Cannot map "<DEL>"
Merge branch 'master' into refactoring
Now XVimWindow is associated with IDEEditorArea ( it was with DVTSourceTextView before )
Add ":commit" command to invoke source control commit.
":co" works as same.
Merge branch 'master' into refactoring
improving debug logging feature. Now all the TRACE_LOG, DEBUG_LOG macro outputs the message to stderr AND .xvimlog file if "set debug" is enabled.
Merge branch 'master' into refactoring
Added some comments.
Added command ":nissue", ":pissue" which invokes jump to next/previous
issue. ":ni" and ":pi" does the same.
Change the order of "nissue" command in the list  (made it alphabetical
order)
implement ":ncounterpart" ":pcounterpart" command to invoke Jump
Next/Prevous Counterpart.
":nc", ":pc" does the same.
One probolem is that when this command is invoked in assistant editor
the command is done in primary editor.
Will be fixed.
Update Documents/Users/FeatureList.md