Skip invalid map markers

Why:
Sometimes the latitude or longitude it passed to the map as *********
instead of the actual latitude or longitud. The asterisks are not a
string, breaking the whole array
https://github.com/consul/consul/issues/2380

What:
This commits skips invalid markers and displays the rest

How:
- Substituting the mysterious asterisks for null
(cleanInvestmentCoordinates)

- Validating the coordinates are numbers before trying to pain
them(validCoordinates)

- Adding a numeric function to validate the latitude and longitude
(isNumeric)
https://stackoverflow.com/questions/9716468/is-there-any-function-like-i
snumeric-in-javascript-to-validate-numbers#answer-9716488

app/assets/javascripts/map.js.coffee

@@ -12,6 +12,7 @@ App.Map =
           App.Map.toogleMap()
 
   initializeMap: (element) ->
+    App.Map.cleanInvestmentCoordinates(element)
 
     mapCenterLatitude        = $(element).data('map-center-latitude')
     mapCenterLongitude       = $(element).data('map-center-longitude')
@@ -102,7 +103,21 @@ App.Map =
           marker.options['id'] = i.investment_id
 
           marker.on 'click', openMarkerPopup
+          add_marker=createMarker(i.lat , i.long)
+          add_marker.bindPopup(contentPopup(i.investment_title, i.investment_id, i.budget_id))
 
   toogleMap: ->
       $('.map').toggle()
       $('.js-location-map-remove-marker').toggle()
+
+  cleanInvestmentCoordinates: (element) ->
+    markers = $(element).attr('data-marker-investments-coordinates')
+    if markers?
+      clean_markers = markers.replace(/-?(\*+)/g, null)
+      $(element).attr('data-marker-investments-coordinates', clean_markers)
+
+  validCoordinates: (coordinates) ->
+    App.Map.isNumeric(coordinates.lat) && App.Map.isNumeric(coordinates.long)
+
+  isNumeric: (n) ->
+    !isNaN(parseFloat(n)) && isFinite(n)