See extended description

1. Added SYMBOL special form (code for SYMBOL-NAME special form added,
but commented out for the time being)
2. Added CONCAT-STRINGS utility function
3. Added ALIAS macro
6. Fixed assert in main.c. Minor formatting changes in same file
4. Using ALIAS in MATRIX package to refer to DOT-PRODUCT
5. Incorrect memsets and string population fixed
6. ARRAY-GET and SET handle string literals now