Ws blocks (#106)

* added another dispatcher to server block changes

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* fixed missing variable definition

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* made the definition of POINON_PILL unique

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* changed some fixtures for web tests, fixed linter errors, updated aiohttp version

Signed-off-by: Lorenz Herzberger <lorenzherzberger@gmail.com>

* added block hash to the block notification

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* fixed misspelling issue

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* fixed previous merge issues

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* fixed websocket startup issues

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* fixed queuing issue and disabled one tests

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* increased version number

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* fixed docs req deps

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* fixed linting issues

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* fixed linting warnings

Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

* fixed aiohttp.web.run_app call

Signed-off-by: Lorenz Herzberger <lorenzherzberger@gmail.com>

Co-authored-by: Lorenz Herzberger <lorenzherzberger@gmail.com>

setup.py

@@ -74,7 +74,7 @@ tests_require = [
 
 install_requires = [
     'chardet==3.0.4',
-    'aiohttp==3.7.4',
+    'aiohttp==3.8.1',
     'abci==0.8.3',
     'planetmint-cryptoconditions>=0.9.4',
     'flask-cors==3.0.10',
@@ -91,6 +91,8 @@ install_requires = [
     'requests==2.25.1',
     'setproctitle==1.2.2',
     'werkzeug==2.0.3',
+    'nest-asyncio==1.5.5'
+
 ]
 
 if sys.version_info < (3, 6):