Release 2.0.3

• Fixed bug in logic to detect valid local definitions
• Handle libraries with errors more carefully to prevent crashes
• Fixed bit counting bug in library (srfi 143)
• New procedures in library (lispkit core): thunk?, procedure-of-arity?, procedure-name, procedure-arity, procedure-arity-range, procedure-arity-includes?, arity-at-least?, arity-at-least-value
• Included new libraries: (srfi sicp), (srfi 102), (srfi 217), (srfi 224)
• New sample code: EUStats.scm