automatically set precompile assets
remove some images

remove some images from app/assets/images/active_admin which has no reference in the code base
remove doubled let namespace in register_resource_spec
remove old formtastic css class and add new ones
add missing el translations

Signed-off-by: Antonis Berkakis <aberkakis@gmail.com>
correct one greek letter

Signed-off-by: Antonis Berkakis <aberkakis@gmail.com>
Merge pull request #3650 from berkos/adding-more-greek-translations

add missing greek translations
Merge pull request #3489 from timoschilling/engine_initializer2

automatically set precompile assets
Merge pull request #3586 from activeadmin/todo_double_let_namespace

remove doubled let namespace in register_resource_spec
fix YARD url
Merge pull request #3563 from activeadmin/remove_images

remove some images
Merge pull request #3596 from activeadmin/2734_form_css

remove old formtastic css class and add new ones
helper gotchas

refs #3671
add docs/README as a docs index page
fix readme typo
update readme documentation links
fix docs/readme links
refactor TargetNotFound Error
rename and improve custom index docs
list all index pages in docs readme