merge
Merge pull request #27 from stas-tanko/stas

updated sign in/up pages
Merge pull request #28 from stas-tanko/stas

UI fixes
alex_fix_main_layout
Merge pull request #29 from stas-tanko/alex

Alex
Add categories controller, starts do tasks controller. Created views for it.
more UI fixes
Merge branch 'dev' into andrew

Merge with dev
Rewrite head menu to slim
Rewrite head menu to slim, remove temp files
Merge branch 'andrew' of https://github.com/stas-tanko/iota-project into andrew
Merge pull request #30 from stas-tanko/andrew

Andrew
UI updates