update changelog (addresses #55)

ChangeLog

@@ -1,10 +1,13 @@
-version 0.2-dev
----------------
+2009-07-11  Jan Dittberner  <jan@dittberner.info>
 
-make themes configurable (fixes #50)
-use a simple template system to allow theming (fixes #32)
-add simple installation and configuration instructions (fixes #38)
-use list for gallery menu (fixes #42)
-update javascript libraries (fixes #47)
-configurability improvements (addresses #49)
-render valid XHTML 1.0 strict markup (fixes #48)
+	* version 0.2
+	* configurable via ini file
+	* themable (two example themes included)
+	* support horizontal and vertical scrolling themes
+	* build script
+	* use a simple template system to allow theming
+	* add installation and configuration instructions
+	* use list for gallery menu
+	* update javascript libraries
+	* render valid XHTML 1.0 strict markup
+	* improved documentation