* test for format with tuple is ok
* 'format'%var is ok (tuple var is not ok)
* rename _cformat to cformat()
* optimize the memory usage of format_list
* add string-test.cpp
* cformat() is ok
* fix variable par load issue
* use test_common.h
* use test_common to simplify the gtest case
* Merge branch 'master' into dev
* fix float->double for bytecodegen
* update to /package
* Use double in C for float in python
6acc0f9ecd