Implemented array type parsing and verification.
Removed obsolete code.
Implemented foreach loop on array types.
Implemented type checking in foreach statements.
Implemented detection of unreachable statements.
modified build file and README
Added missing operation prototypes.
Added missing initialization of global variables.
Adjusted code generation for console reading.
Minor adjustments to code generation.
Added missing write prototypes.
Cleaned up code.
Minor changes in test files.
Added separate package for Lea lib classes.