Bump dependency versions

requirements.txt

@@ -5,9 +5,9 @@ Flask-DebugToolbar==0.9.0
 Flask-Login==0.2.10
 Flask-Mail==0.9.0
 Flask-Migrate==1.2.0
-Flask-Plugins==1.0.2
+Flask-Plugins==1.1
 Flask-SQLAlchemy==1.0
-Flask-Script==2.0.3
+Flask-Script==2.0.5
 Flask-Themes2==0.1.3
 Flask-WTF==0.9.5
 Jinja2==2.7.2