MAKE-ARRAY, AREF, ASET and ARRAYP functions
LENGTH function works for arrays (vectors)
Printer for arrays
Export MAKE-ARRAY, ARRAYP, AREF and ASET functions
Compile literal arrays
Array out-of-range checks
PSETQ and multiple pairs SETQ
Fix (/ N)
Fix n-arity comparisons
Align exports
Compile last version
Merge branch 'simple-arrays' into gh-pages

Conflicts:
	ecmalisp.lisp
Merge branch 'psetq' into gh-pages
Export PSETQ and fix PROGN export
Compile last version