add prefill to signup page

it is for user which come frome prefill form on home page
improve cars soft delete feature
Merge pull request #58 from laudeego/em-homepage-registration-form

add prefill to signup page
fix spelling errors, fix "how it works" link and remove flash about successfull logout
add confirmation dialog for deleting user cars
update test after droping flash message for logging out
disable socials buttons
update user email texts/subjects
Merge pull request #59 from laudeego/em-cars-page-soft-delete

Em cars page soft delete
Merge branch 'master' into em-mechanic-calendar-workflow

Conflicts:
	Gemfile
adding days off work by new alghorythm, but code needed refactoring
save updates before upgrading schedule_spec