- Fixed bugs in parsing of rule parameters (5s, 0.5s and so on)
- Added feature of turning off declaration temporaly
- Fixed BlockParser. Now it works correctly with minified css
- Added possibility of turning off autoloader
- Implemented arithmetic expression parsing into a tree
- Now it is possible to load dependencies via MySheet directly
- Implemented normalization of expression tree
- Added operators
- Reworked operators' logic
- Added helpers to work with expressions
- Reworked FuncList iteration
- Added first operations
- Added support for declaring operations by RuleParams
- Added DivideOperator
- Some minor modifications
- Moved php include files to Etc/Include
- Made some work in arithmetic part
- Renamed RuleParam into MssClass in whole MySheet Project
- Enhanced the way of working with VariableScope class
- Modified Autoloader behavior (but I guess it's not the end)
- BUG: MssClass precedence was not considered
- BUG: Operands were confused in MinusOperator 
- Added MssClassHelper
- Added TODO file
- Added few simple functions MathModule class
- Reworked logic of FunctionModule
- Fixed some bugs
- FEATURE:Function nesting is now supported
- Implemented support of unitless MetricClass and reworked operators for it