Process contributor data

Add util function for processing contributor data, and remove bignums,
etc.

tests/unit/utils/process-contributor-data-test.js

@@ -0,0 +1,31 @@
+import { module, test } from 'qunit';
+import processContributorData from 'kredits-web/utils/process-contributor-data';
+import testData from '../../fixtures/contributor-data';
+
+module('Unit | Utility | process-contributor-data', function() {
+
+  let result = processContributorData(testData);
+
+  test('formats the data correctly', function(assert) {
+    // TODO use integers everywhere for IDs
+    assert.ok(typeof result.id == 'string');
+    assert.ok(typeof result.balance == 'number');
+    assert.ok(typeof result.totalKreditsEarned == 'number');
+    assert.ok(typeof result.contributionsCount == 'number');
+  });
+
+  test('copies other properties', function(assert) {
+    [
+      'account', 'accounts', 'ipfsHash', 'isCore', 'kind', 'name', 'url',
+      'github_username', 'github_uid', 'wiki_username', 'zoom_display_name'
+    ].forEach(p => {
+      assert.ok(Object.prototype.hasOwnProperty.call(result, p), `copies property ${p}`);
+    })
+  });
+
+  test('does not copy unnecessary properties', function(assert) {
+    ['exists', '5'].forEach(p => {
+      assert.notOk(Object.prototype.hasOwnProperty.call(result, p));
+    })
+  });
+});