Fix 1.1.0 release (#43)

These changes:

 - bump package version to 1.1.0

 - strip the version string in setup.py in order to avoid a packaging issue
   https://travis-ci.org/opentracing-contrib/python-flask/jobs/600396363#L315
   pypa/setuptools#1390

 - declare support for Python 3.8
   https://discuss.python.org/t/python-3-8-0-is-now-available/2478

 - update .travis.yml

 - add long_description_content_type to setup.py

Author: Jamim

.travis.yml

@@ -5,7 +5,7 @@ python:
   - '3.5'
   - '3.6'
   - '3.7'
-  - '3.8-dev'
+  - '3.8'
   - 'nightly'
   - 'pypy'
   - 'pypy3.5'
@@ -27,7 +27,6 @@ matrix:
       install: skip
       script: skip
   allow_failures:
-    - python: '3.8-dev'
     - python: 'nightly'
 
 install:

VERSION

@@ -1 +1 @@
-1.0.0
+1.1.0

setup.py

@@ -6,7 +6,7 @@
 
 This extension provides simple integration of OpenTracing in Flask applications.
 '''
-version = open('VERSION').read()
+version = open('VERSION').read().strip()
 setup(
     name='Flask-OpenTracing',
     version=version,
@@ -17,6 +17,7 @@
     author_email='[email protected]',
     description='OpenTracing support for Flask applications',
     long_description=open('README.rst').read(),
+    long_description_content_type='text/x-rst',
     packages=['flask_opentracing', 'tests'],
     zip_safe=False,
     include_package_data=True,
@@ -46,6 +47,7 @@
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Internet :: WWW/HTTP :: Dynamic Content',