Merge pull request #10 from VladimirPlokhov/feature/coming_soon

Feature/coming soon
Merge pull request #11 from VladimirPlokhov/feature/coming_soon

Add twitter & github buttons
ignore js&css files
update doc with gitflow develop → alpha
Merge pull request #12 from Fandekasp/feature/update_doc_git

update doc with gitflow develop → alpha
update doc logo
resize logo for sphinx doc
add newsletter placeholder
adding template without iframe
Merge pull request #13 from Fandekasp/feature/add_subscription

add newsletter placeholder
Add style for newsletter block