typos
Merge pull request #1150 from kylepjohnson/master

typos
Converted a leftover old-style click callback.
Refactored the scripting interface greatly.
Add missing `of` to documentation.
Updated intersphinx
Added some missing documentation information.
Removed ridiculous constructor from AppGroup
Added a missing self
Removed dead import
Added support for PYTHONSTARTUP to shell command.
Merge pull request #1156 from brwr/brwr/fix-documentation-typo

Add missing `of` to documentation.
Remove date tagging.
Always log now, even if debug is off.
Removed deprecated module functionality
Added a changelog entry for modules.
Updated the logging documentation for recent changes.
Fix warnings and code styling in the doc

There was a blank line missing that was generating a warning when
building the doc. Also, a removed function from cli.py was left in api.rst
(without_appcontext specifically) so this was also generating warnings.

Also corrects the format for a code block and adds a link to Werkzeug's Headers
class.