Installed ckedidor_rails gem
Updated ckedidor gem
Revert "Updated ckedidor gem"

This reverts commit cbd54a8466cfd1ea2ca92106c2386eb484511911.
Revert "Installed ckedidor_rails gem"

This reverts commit b3729c90765a09fe92aae3eae4bc5d72ddf00525.
Added ckeditor source in assets
Modified the form and added ckeditor
Made email message html safe