Reduce default extent to allow for consistent proj4 round-tripping

See https://github.com/Vizzuality/grainstore/issues/42

NEWS.md

@@ -1,5 +1,7 @@
 1.1.4 (DD//MM//YY)
 -----
+* Reduce default extent to allow for consistent proj4 round-tripping 
+
 
 1.1.3 (DD//MM//YY)
 -----

config/environments/development.js.example

@@ -11,7 +11,7 @@ var config = {
         user: "publicuser",
         host: '127.0.0.1',
         port: 5432,
-        extent: "-20037508.5,-20037508.5,20037508.5,20037508.5",
+        extent: "-20037508.3,-20037508.3,20037508.3,20037508.3",
         /* experimental
         geometry_field: "the_geom",
         extent: "-180,-90,180,90",

config/environments/production.js.example

@@ -10,7 +10,7 @@ var config = {
         user: "publicuser",
         host: '127.0.0.1',
         port: 6432,
-        extent: "-20037508.5,-20037508.5,20037508.5,20037508.5",
+        extent: "-20037508.3,-20037508.3,20037508.3,20037508.3",
         simplify: true,
         max_size: 500
     }

config/environments/staging.js.example

@@ -10,7 +10,7 @@ var config = {
         user: "publicuser",
         host: '127.0.0.1',
         port: 6432,
-        extent: "-20037508.5,-20037508.5,20037508.5,20037508.5",
+        extent: "-20037508.3,-20037508.3,20037508.3,20037508.3",
         simplify: true,
         max_size: 500
     }

config/environments/test.js.example

@@ -10,7 +10,7 @@ var config = {
         user: "publicuser",
         host: '127.0.0.1',
         port: 5432,
-        extent: "-20037508.5,-20037508.5,20037508.5,20037508.5",
+        extent: "-20037508.3,-20037508.3,20037508.3,20037508.3",
         simplify: true,
         max_size: 500
     }