Bumped purescript version

Author: eskimor

package.json

@@ -7,7 +7,7 @@
     "gulp-jscs": "^1.6.0",
     "gulp-jshint": "^1.11.2",
     "gulp-purescript": "^0.7.0",
-    "purescript": "0.7.4",
+    "purescript": "^0.7.6",
     "rimraf": "^2.4.1"
   }
 }