Created a new branch to work on LSEL (L-System Expression Language).

Removed initial LSEL model from the com.zastoupil.lsystem.mdoel.lang
package and began anew in the com.zastoupil.lsystem.lang package

Signed-off-by: Peter Zastoupil <peterzastoupil@gmail.com>
Re-created the basic LSEL model

Order of operations is now built into the model, and parsing using the
Scala Combinatoric Parser API is the next major goal.

Signed-off-by: Peter Zastoupil <peterzastoupil@gmail.com>
Finished implementing the initial LSEL parser logic.

+ Major implementation of lang.LSELParsers
+ Major restructure of lang.Expression and other lang package elements
+ Minor cleanups in model.turtle.Symbol

Signed-off-by: Peter Zastoupil <peterzastoupil@gmail.com>
Finished LSEL Model and Parsers

The LSEL Model has been refined and an LSEL Parser has been built to
parse SystemToken objects from input strings.

Signed-off-by: Peter Zastoupil <peterzastoupil@gmail.com>
Merge pull request #2 from resistttheurge/lang

Lang Pull Request