[NEW_FEATURE] Settings on cloud - dropbox.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1242 f5eea248-9336-0410-98b8-ebc06183d4e3
[NEW] Add warning text if settings on cloud option has been changed.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1243 f5eea248-9336-0410-98b8-ebc06183d4e3