Merge branches 'master' and 'rukku-master'
Merge branch 'master' of https://github.com/ingenieroariel/webandgis
Merge branch 'master' of https://github.com/ingenieroariel/webandgis
Merge branch 'master' of https://github.com/ingenieroariel/webandgis
add bbox polygon in the map
Merge pull request #28 from maning/master

Adding a bbox poly in the layer map.
Added basic inasafe structure, it is called /layers/calculate