Lots of small updates and fixes:
- tighter usage output. Now the big usage text only displays when using the -? command-line switch.
- added the -version switch that outputs ONLY the build version of the file.
- \v escapes in string literals will cause the string literal to be output as-is due to cross-browser issues. Now allows for a cool IE-detection trick to be employed.
- fixed CSS issue (discussion #264779) that caused incorrect casing in the output of tokens that PARTIALLY match "url(".
- fixed issue #16251, added EditorBrowsable attribute set to false for methods and properties marked Obsolete.
- fixed issue #16253 - allows for clearing of certain CodeSettings lists by setting to null or empty string.
- fixed issue #16254 - removed private keys from public sources. See documentation page for more information.
- fixed issue #16259 - unquoted font names with white-space and parentheses getting whitespace incorrectly removed.
- fixed discussion #265518, added Clobber attribute to build task, along with warning message about read-only files.