added demos for addTo methods
added withNull, added nulls to addTo demo
added toList demos
added toString and fromString demos
added charsToString demo
wrote docs for some range methods
added more demos, fixed cycle
added docs for char, BigInteger, and BigDecimal ranges
added more range demos
add manifest
added some range tests
added more range tests
added more range docs
added more range tests and fixed some range docs
added float and double ranges and docs
added float and double range tests
started adding floating-point range demos
fixed -0.0 float-point ranges
add min-value and max-value floating-point ranges
added floating-point range tests