Fix pypi release

Author: sloria

.travis.yml

@@ -31,7 +31,9 @@ jobs:
     env: []
     # Override install, and script to no-ops
     before_install: true
-    install: true
+    install: 
+    - travis_retry pip install -U .
+    - travis_retry pip install -r dev-requirements.txt
     before_script: true
     script: echo "Releasing to PyPI..."
     after_success: true

flask_apispec/__init__.py

@@ -4,7 +4,7 @@
 from flask_apispec.extension import FlaskApiSpec
 from flask_apispec.utils import Ref
 
-__version__ = '0.6.0'
+__version__ = '0.6.0.post0'
 __all__ = [
     'doc',
     'wrap_with',