Fix two bugs with triple quoted strings within comments and missing indentation within triple quoted strings (#3316966, synced from CTags SVN, patch by Elias Pschernig, thanks).

git-svn-id: https://geany.svn.sourceforge.net/svnroot/geany/trunk@5851 ea778897-0a13-0410-b9d1-a72fbfd435f5