Jokes! Back to the lang branch
Re-working the LSEL model to accommodate integrated L-System evaluation,
as opposed to file parsing followed by separate L-System evaluation.
WIP.

Signed-off-by: Peter Zastoupil <peterzastoupil@gmail.com>
Final design and cleanup of the LSEL AST and parsers.

Removed all functional aspects of the LSEL AST in order to black-box
that functionality in the up-coming runtime branch.

Defined LSELExpression and LSELConstruct as completely separate branches
of the LSELToken tree. While some sub-trees of LSELConstruct make
explicit references to LSELExpression and its subtrees, this distinction
ensures that LSELExpression objects are restricted to "dumb" evaluation
in the context provided by the higher-level LSELConstruct objects

Signed-off-by: Peter Zastoupil <peterzastoupil@gmail.com>
Cleanup on Aisle "Model"

Made some very small changes that impact very little, but represent
things that I've learned by working with Scala for the past week or so.
Most identifiable amongst the changes is the removal of duplicate
vals/parameters in the model classes. It was a rookie mistake, likely
caused by me coming from Java.

Signed-off-by: Peter Zastoupil <peterzastoupil@gmail.com>
Merge pull request #3 from resistttheurge/model

Cleanup on Aisle "Model" - Approved and merged.
Merge pull request #4 from resistttheurge/lang

Lang -> Master Pull Request