Ignore $strict argument.

White-space cleaning must happen. Otherwise Textile
parsing will not work properly and will produce
unexpected results. Preventing it is not an option, and
disabling it can only cause harm and break our C
compliance, and Windows and online editor support.

Closes #119
Move white-space cleaning to textileCommon().
Update changelog.
Make security implication clear.
Signal the user using $encode is discouraged.

Otherwise they will never know, unless they really
read 1000 lines of code and see the inline comment.
Improves and fixes reference token referencing.

* Removes potential DoS vector.
* Fixes collision potential caused by MD5.
* Removes span count roof.
* Fixes tag cache memory leak.

Conflicts:
	classTextile.php
Clean up fImage().
Update changelog.
Define more properties as protected.

These should be the last two leaking properties.
Generate UID once per instance.

Micro-optimization.
Randomize glyph token instances.

Prevents removing valid glyph: instances.
Should probably assign it too.
Merge @gocom's PHPDoc work from master
Merge @gocom's changes from master

* Give some variables more meaningful names.
* Remove a reversed double conditional.
* End all multi-line arrays with a comma, close on next line.
Complete previous commit