STITCHIT v1.0.2

-corrected scaling for train/test split
-added error log file for failed genes

STITCHIT v1.0.1

• Added gene expression discretization: gene_expression_discretization.R
• window extension around most 5' TSS
• Two_level_learning_elasticNet.R for saving elastic net models: includes error handling constant test response, multiple equal min. CV error; stores elastic net model with minimum CV error in RData format: model, alpha, lambda, train-test splits inner/outer CV