add 3ROSE logo, improve integration
add flags (images) for i18
big commit: move logic text-converting & indexing to 3rose-app(sphinx 2 with 'thinking sphinx'), add  multilangs tooltips(en, ru, ua), replace State table with gem 'workflow', fix search bar(remove unneeded features)
Merge branch 'v3' of github.com:phlowerteam/3rose-app into v3