Remove unused imports and asyncoro dependency

re and uuid imports are unused in setup.py, and asyncoro is never
imported in the API.

Also added pyflakes in .travis.yml to check if the problems in setup.py
are fixed.

.travis.yml

@@ -4,11 +4,13 @@ python:
   - "3.5"
 install: 
   - pip install -r requirements.txt
+  - pip install pyflakes
   - pip install python-coveralls
   - pip install coverage
   - pip install nose
 script:
   - python setup.py install
+  - pyflakes setup.py
   - nosetests --with-coverage tests
 after_success:  
   - coveralls

requirements.txt

@@ -1,4 +1,3 @@
-asyncoro==3.5
 requests==2.8.1
 xmljson==0.1.6
 

setup.py

@@ -1,6 +1,3 @@
-import re
-import uuid
-
 try:
     from setuptools import setup
 except ImportError:
@@ -25,7 +22,6 @@
           ],
       keywords="Twitter Loklak Anonymous API",
       install_requires=[
-        "asyncoro==3.5",
         "requests==2.8.1",
         "xmljson==0.1.6"
       ],