Replace deprecated assertEquals() with assertEqual()

Change-Id: I7776c65f9c28b3cf05f2169696da0256f5cfc5b8
Add inline review support

Added API to send inline review

Change-Id: Ifdcfbaea6ae4d8723d9566eaaf3c5dba5ff35617
Bump python requests version to 2.4.1

Change-Id: I7ce16a9042367ac491dbea363452a9fc511997a7
Set request requirements to >= 2.4