version 0.9.22

 - Refactored JSONFeature and separated to JSONStringOps
 - Bumped less.js compiler from 1.5.0 to 1.6.0
 - Changed to preferentially use native compilers for coffee/less
 - #18 added keyAndErrorMessages example
 - Re-packaged DBSession serlvet filters to skinny.orm.servlet
 - Disabled scalate error page by default
 - #45 added UncaughtExceptionNotifier (still alpha version)
 - Use Jetty 9.0 for development istead of 9.1
 - Fixed typo in skinny script for Windows
 - Fixed stackoverflow error when defaultAlias is absent on SkinnyMapper
 - Renamed SkinnyMapper's primaryKeyName to primaryKeyFieldName
 - Added default value to implicit DBSession in some APIs
 - Renamed validator's TypeConverter to ParamValueTypeConverter
 - Enabled using non-numeric value as primary key in Skinny-ORM and
   SkinnyResource