Merge develop into master for release 0.11.0

.flake8

@@ -0,0 +1,49 @@
+[flake8]
+exclude = .git,.tox,__pycache__,doc,old,build,dist
+show_source = True
+statistics = True
+verbose = 2
+select =
+    E101,
+    E112,
+    E122,
+    E125,
+    E133,
+    E223,
+    E224,
+    E242,
+    E273,
+    E274,
+    E901,
+    E902,
+    W191,
+    W601,
+    W602,
+    W603,
+    W604,
+    E124,
+    E231,
+    E211,
+    E261,
+    E271,
+    E272,
+    E304,
+    F401,
+    F402,
+    F403,
+    F404,
+    E501,
+    E502,
+    E702,
+    E703,
+    E711,
+    E712,
+    E721,
+    F811,
+    F812,
+    F821,
+    F822,
+    F823,
+    F831,
+    F841,
+    W292

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,44 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!-- In the following, please describe your issue in detail! -->
+<!-- If some of the sections do not apply, just remove them. -->
+
+### Short description
+<!-- This should summarize the issue. -->
+
+### Code to reproduce
+<!-- Please provide a minimal working example that reproduces the issue in the code block below.
+     Ideally, this should be a full example someone else could run without additional setup. -->
+```python
+import pyqtgraph as pg
+import numpy as np
+```
+
+### Expected behavior
+<!-- What should happen? -->
+
+### Real behavior
+<!-- What happens? -->
+
+```
+An error occurred?
+Post the full traceback inside these 'code fences'!
+```
+
+### Tested environment(s)
+
+ * PyQtGraph version: <!-- output of pyqtgraph.__version__ -->
+ * Qt Python binding: <!-- output of pyqtgraph.Qt.VERSION_INFO -->
+ * Python version: 
+ * NumPy version: <!-- output of numpy.__version__ -->
+ * Operating system: 
+ * Installation method: <!-- e.g. pip, conda, system packages, ... -->
+
+### Additional context

.pre-commit-config.yaml

@@ -0,0 +1,11 @@
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    sha: master
+    hooks:
+    -   id: check-added-large-files
+        args: ['--maxkb=100']
+    -   id: check-case-conflict
+    -   id: end-of-file-fixer
+    -   id: fix-encoding-pragma
+    -   id: mixed-line-ending
+        args: [--fix=lf]

.readthedocs.yml

@@ -0,0 +1,12 @@
+# Read the Docs configuration file
+# https://docs.readthedocs.io/en/stable/config-file/v2.html
+
+version: 2
+
+python:
+  version: 3
+  install:
+    - requirements: doc/requirements.txt
+
+sphinx:
+  fail_on_warning: true