[#316] Banishing double spaces after full stops
[#316] formatting code-like text with C<> in Cookbook.pod

This change formats all code-like text to use the C<> POD formatting
directive.  The usage of C<> should now be consistent within this document.
[#316] moving "no warnings" advice into its own section

It didn't make much sense to discuss the complication of using "no warnings"
in the simple, introductory Dancer2 example.  However, it makes sense to
retain this information in the document, thus it now has its own section
where other, less standard pieces of advice can go.
[#316] minor textual corrections to Cookbook.pod

This change removes extra unneeded space, adds or removes commas as needed,
adds full stops, adds missing words and generally tries to improve the flow
of the document.
[#316] Writing Template Toolkit in full

The abbreviation "TT" was used in basically only one location.  In order to
be consistent with the rest of the document, and to be nice to the people
who don't realise straight away that TT is the Template Toolkit, the
abbreviation has now been written out in full.
[#316] adding space for readability in script examples

Adding spaces between commas and comment characters etc. to improve the
readability of the config-reading scripts.  Also gave the scripts more
descriptive names.
[#316] adding links to perl-based web server info

Also fleshed out the description of Starman.
[#316] documenting how to change a template's extension in the manual

This also addresses the issue in #624.
[#316] mentioning that the template extension can be overridden

This also addresses the issue in #624.
reflect changes
Merge branch 'pr/cookbook_textual_improvements'