Upgrade setup.py requirements

Author: mdmintz

setup.py

@@ -14,17 +14,17 @@
     description='The SeleniumBase Automation Framework',
     license='The MIT License',
     install_requires=[
-        'selenium==2.50.1',
+        'selenium==2.52.0',
         'nose==1.3.7',
-        'pytest==2.8.5',
-        'flake8==2.5.1',
+        'pytest==2.8.7',
+        'flake8==2.5.4',
         'requests==2.9.1',
         'urllib3==1.14',
         'BeautifulSoup==3.2.1',
         'unittest2==1.1.0',
         'chardet==2.3.0',
-        'simplejson==3.8.1',
-        'boto==2.38.0',
+        'simplejson==3.8.2',
+        'boto==2.39.0',
         'ipdb==0.8.1',
         'pyvirtualdisplay==0.1.5',
         ],