CORE-303 removed redundant icons from CSS, HTML/HAML and PNG
CORE-303 removed redundant space in icons sprite and made it easier to read
adding vendor icons
CORE-263 adding vendor icons
CORE-294 adding 3 new icons in 3 variations
CORE-294 adding 2 additional icons
CORE-313 added missing icons and replaced place for date icon
Merge pull request #1878 from reciprocity/feature/icons-remove-add

icons remove and add into sprite