bump version again and make sure we build all branches

.travis.yml

@@ -26,7 +26,3 @@ script:
     - pylint edx_proctoring --report=no
 
 after_success: coveralls
-
-branches:
-    only:
-      - master

setup.py

@@ -34,7 +34,7 @@ def load_requirements(*requirements_paths):
 
 setup(
     name='edx-proctoring',
-    version='0.7.1',
+    version='0.7.2',
     description='Proctoring subsystem for Open edX',
     long_description=open('README.md').read(),
     author='edX',