Add resolution for jQuery in bower config.

Resolving as version 2.x because that's the version angular-schema-form depends on. If there's an issue with angular-ui-sortable, it the resolution should probably be increased to 3.x.

This was the original version conflict:

Unable to find a suitable version for jquery, please choose one by typing one of the numbers below:
    1) jquery#~2.1.1 which resolved to 2.1.4 and is required by angular-schema-form
    2) jquery#>=1.6 which resolved to 2.1.4 and is required by jquery-ui#1.12.1
    3) jquery#>=1.7 which resolved to 2.1.4 and is required by pickadate#3.5.6
    4) jquery#>=1.7.2 which resolved to 2.1.4 and is required by spectrum#1.7.0
    5) jquery#>=3.1.x which resolved to 3.3.1 and is required by angular-ui-sortable#0.19.0

Author: rhelgeby

bower.json

@@ -54,5 +54,8 @@
     "angular-ui-sortable": ">=0.12.11",
     "bootstrap-vertical-tabs": "~1.2.0",
     "angular-schema-form-bootstrap": "~0.1.2"
+  },
+  "resolutions": {
+    "jquery": "~2.1.1"
   }
 }