#LL-730 allow users to choose from recommended Q&As
#LL-778
#LL-792
changed appearance of selecting users
#LL-792
adopted Learning Layers UI guidelines
#LL-162
#LL-162
changes for taking care of new uri scheme
removed features that do not work
Merge branch 'Peter' of https://github.com/learning-layers/KnowBrain into Peter
LL-852
LL-853
LL-854
showing time as time ago
Merge branch 'Peter' of https://github.com/learning-layers/KnowBrain into Peter
#LL-834
#LL-851
filter threads by tags
fixed creationTime of answers to questions
#LL-859
prepared like/dislike functionality