BRC Logo added
Added three NGA layers

Impassable roads, damage, bridge out
Revert "Added three NGA layers"

This reverts commit 2cdf8b6dce7d4cfe9ca9ec0e2cfa303653ce1f0f.
Merge pull request #1 from AmericanRedCross/master

creating layer control
Added 3 NGA layers

3 geojson files are actually javascript files defining the geojson
variable
Merge pull request #1 from SimonbJohnson/master

BRC Logo + 3 NGA layers