Extend htmlchars plugin with some replacment functions.

git-svn-id: https://geany.svn.sourceforge.net/svnroot/geany/trunk@3643 ea778897-0a13-0410-b9d1-a72fbfd435f5

ChangeLog

+2009-03-20  Frank Lanitz  <frank(at)frank(dot)uvena(dot)de>
+
+ * plugins/htmlchars.c:
+   Extend plugin by feature to bulk replace and replace on input for
+   special characters to their HTML entities.
+
+
 2009-03-19  Enrico Tröger  <enrico(dot)troeger(at)uvena(dot)de>
 
  * src/build.c: