remove mrb_parse_nstring_ext; use mrb_parser_new() then set p->capture_error = 1; then call mrb_parser_parse(); see tool/mirb/mirb.c

Updated .gitignore for test/

avoid passing NULL to fopen

idx should be less than the cap, if it is equal irep needs to grow.

avoid updating existing libmruby.a to avoid problems on low time resolution file systems; close #136

Changed test target for Math module in order to support fuzzy checking

Add Tests for Math, Integer, Numeric and Array

Added some tests for trig functions in Math module. Also, tests are made against a tolerance on Floats