CSSTidy Code

Added font property resolving (works by default on optimize_shorthands=1).
Tuned unit tests with settings.
Added unit test about multiple font-family.

Fixed bug with resolving second negative background-position value.

Added ctype_alpha (not very good, because of only English locale) 'clone'

Added unit tests for shorthands (padding / margin / font-weight / background) and properties (CSS1 / CSS2.0 / CSS2.1).
Need to add shorthand for
'font'
Value: [ [ <'font-style'> || <'font-variant'> || <'font-weight'> ]? <'font-size'> [ / <'line-height'> ]? <'font-family'> ] | caption | icon | menu | message-box | small-caption | status-bar | inherit

Added outline to unit_values, deleted position from there. w3.org:
'position'
Value: static | relative | absolute | fixed | inherit

Quotes behavior verified

Fixing problems with quotes in attributes selectors and quoted charset/import/namespace. No more problems with quotes detected

Added ctype functions emulation (to prevent failure on some environments)

Applying patch from ticket #2597191
https://sourceforge.net/tracker/?func=detail&aid=2597191&group_id=148404&atid=771415
Thx to blueyed

Applying patch from ticket #2509464
https://sourceforge.net/tracker/?func=detail&aid=2509464&group_id=148404&atid=771415
thx to blueyed