Remove unused var sv
mrb_open takes no arguments: (void) instead of ()
string interpolation in regex
remove installing executable first to avoid text-file-busy when investigating on debugger
bugfix: assert_raise
Merge pull request #925 from carsonmcdonald/rmunusedvar

Remove unused var sv
Merge pull request #927 from iij/pr-assert-raise-bugfix

bugfix: assert_raise
cleanup: delete commented out match_op() from parse.y
Adjust some indents
cleanup: unused variable local_svar
Remove trailing whitespaces. This is just a cosmetic change.
Merge pull request #933 from monaka/pr-remove-trailing-whitespaces-20130303

Remove trailing whitespaces. This is just a cosmetic change.
Merge pull request #932 from kaishuu0123/cleanup-mruby.h

cleanup: unused variable local_svar
Merge pull request #931 from matsumoto-r/fix_some_indents

Adjust some indents
Merge pull request #930 from kaishuu0123/cleanup-parse.y

cleanup: delete commented out match_op() from parse.y
Merge pull request #928 from cremno/mrb_open-void

mrb_open takes no arguments: (void) instead of ()