update macvim
#8 add pornel/sparkle
#8 add sparkle in credits
#8 add sparkle related settings
Merge issue 8: branch 'issue/sparkle-8'
Merge issue 8: branch 'master' into issue/open-quickly

Conflicts:
	VimR.xcodeproj/project.pbxproj
	VimR.xcodeproj/xcshareddata/xcschemes/VimR.xcscheme
	VimR/Base.lproj/MainMenu.xib
	VimR/VimR-Info.plist
#5 let xcode change whatever it must change after merge
#5 fix broken xib file after a merge