Java8EA/Test.java
Scheme/syntax

sobj_eval_sym does not raise Exception if S-expression which includes syntax
RbScm can parse bool now
RbScm can evaluate if-syntax
set! in RbScm
begin syntax in RbScm
cond in Scheme/eval.rb
and, or in Scheme/eval.rb
replace Scheme boolean checks with scm_true?/scm_false?
null? in Scheme/eval.rb
fixed Scheme/parse.rb

parse_list can parse improper list correctly now.
a new test was added in test.rb
define in Scheme/eval.rb
(fix) removed bugs in parse_list

parse_list can parse improper list correctly.
before:(2 3 (4 . 5))
after:(2 3 4 . 5)
6.2.4 numerical constants

parse_num supports binary, octal, decimal, and hexadecimal integer literals
(but does not support floating-point number literals and negative numbers).
6.2.5 numerical operations (not complete)

* was supported
6.2.4 numerical constants

parse_num now supports signed integer literal.
6.2.5 numerical operations

null? (6.3.2)
number?
integer?
<
stop treating top-level environment specially

top-level environment is just an environment
moved tests for eval.rb to test-eval.rb
environment

parameters are no longer defined globally