Improve PrettyPageHandler resources code
Document PrettyPageHandler::getResource
Fix failing PrettyPageHandler tests
Move deprecated methods in PrettyPageHandler to end of class body
Move template helpers to own class
Add test for TemplateHelper::slug
Add TemplateHelper::render
Add test for TemplateHelper::render
Re-organize resource structure
Start moving some stuff over to the new template layout
Use TemplateHelper methods in frames_list.php
Split up template into multiple files
Rename template files
Remove  template variable
Consolidate template variable handling
Add TemplateHelper tests for variable handling
*twitch* one space too many
Merge remote-tracking branch 'origin/feature/prettyhandler-fix'

Conflicts:
	src/Whoops/Handler/PrettyPageHandler.php
	src/Whoops/Resources/pretty-template.php
TemplateHelper: whitespace cleanup
TemplateHelper: simplify preserving the scope clean