Fixed wrong insert position when the cursor was moved by keyboard and comments, includes or a date was inserted.
Also fixed some segfault when inserting comments, dates and includes at a position prior to some deleted text.


git-svn-id: https://geany.svn.sourceforge.net/svnroot/geany/trunk@1112 ea778897-0a13-0410-b9d1-a72fbfd435f5