several more tiny fixes
a tiny fix to a test
fixed Csabo's bug about Microsoft Windows line endings + the better scanner, removed FOR for integers
ERR$ is added, ER=16 is added, tests refactoring
small fixes in PRINT and init arrays; a bug fix in the string assignment
SAVE is implemented
fixed HEADER, DS; a test for disk io; several minor bugs fixed
added RESUME; improved: ER, tokenization, test suite