added sticky blog entries
quick todo note
pin icon instead of text
in my 4.1 the stylesheet assets live in app/stylesheets directly
use a php file cache instead of json. should increase reading speed drastically
if saving of a cache file failed, check for existing folder structure, try to create it if it was missing and notify the admin if it could not be created

Signed-off-by: Hauke Schade <cnlpete@cnlpete.de>
Merge pull request #42 from cnlpete/release/4.1

sticky blog entries