added functionality

Added image gallery
Collapsable mentor section
Links to sponsorship package and signup excel doc
fixed carousel so that it shows up end to end
added new carousel in “whats happening now” section
Merge branch 'Dev'
Updated the Excel Application

Updated the Excel application form
removed gutter issue and updated the gallery

fixed errors in the code that forced the black background to display a
white gutter and updated the blue imp gallery
added controls

added the left, right and ‘x’ buttons to the gallery