Add css optimization to dojo builds
Updated Spanish translation
Merge pull request #133 from jchristi/jchristi

Add css optimization to dojo builds
Merge pull request #132 from Menti/master

Updated Spanish translation
Merge pull request #134 from sunjayc99/master

Added functionality for navigation without opening articles and toggling expansion of headlines
try to fill the buffer with headlines if possible
fix for fetching urls with spaces