Almost completed the "Edit style" tool to be used in the layer info page. Need to fix a pair of points with Bart before rasing a PR.
Accessing the styler tool in the correct way.
verify that there are four different files before allowing upload
Merge pull request #862 from capooti/issue-764

Added the "Edit Style" tool in the layer info page, refs #764
allow tif file
also support the tiff extension
use the FileTypes to check files requirements
show related documents in map and layer detail pages
fix document detail template and documents rating
truncate before urlizing in info panel
Merge pull request #863 from simod/issue-774

fix #774