Fix syntax and spelling erros in streams/caching-and-optimization
Fix Issue #151
Fix whitespaces breaking html links in getting-started/next-steps
Added rough draft of 2.2.1 changelog
Updating WYSIWYG field type docs.

Adding notes on Allow Tags, and other clarifications.
Updating textarea field type docs.
Changelog revisions.
Adding documentation of redirect function.
Link to textarea field type with new options.
Removing this. This isn't in this version.
escaped underscores. because markdown.
Fixed two formatting errors
Merge branch '2.2' of https://github.com/pyrocms/pyrocms-docs into 2.2
Added theme:image_path and theme:image_url and their caa/js equivalents.
Fix links guides/themes/custom-theme-basics
Fix wrong link to Tags in themes/overloading-module/views
Spelling Errr
Update entry-looping.md

Filter stream by date example text said "show_previous"...it should be "show_past"
Merge branch '2.2' of https://github.com/jchamberlain/pyrocms-docs into jchamberlain-2.2

Conflicts:
	content/field-types/wysiwyg.md
Merge pull request #152 from pickupman/bugfix-library-nav

Fix Issue #151