k9mail/k-9 — pull request #75 by sunglim (2011-10-27 17:45:18+00:00)
Title: Added StringUtils class , isNullOrEmpty() function and applied.

Added StringUtils class which would have string utility method.

StringUtils class has isNullOrEmpty() which check if string == null || string.length() .

It's similar with .net style(http://msdn.microsoft.com/en-us/library/system.string.isnullorempty.aspx)