updated requirements

Author: DonJayamanne

requirements.txt

@@ -4,4 +4,5 @@ pylint==1.5.4
 pep8==1.7.0
 prospector==0.11.7
 flake8==2.6.0
-pydocstyle==1.0.0
+pydocstyle==1.0.0
+jupyter

src/test/extension.format.test.ts

@@ -110,7 +110,7 @@ suite('Formatting', () => {
             return new Promise<any>((resolve, reject) => {
                 setTimeout(() => {
                     resolve();
-                }, 4000);
+                }, 5000);
             });
         }).then(() => {
             assert.equal(textDocument.getText(), formattedContents, 'Formatted contents are not the same');