Fix warnings
Merge pull request #11 from Lnc/fix_warning

Fix warnings
Added extensions in osl_statement_t
Fix tests in CMake build system
Remove mpz_t* casts
Use const in osl_int* functions
Add overflow detection
Factorize -, ++ and -- operations in osl_int
Add osl_int_size_in_base_2 and osl_int_size_in_base_10 functions
Add div, mod and gcd functions for osl_int
Add osl_int test
Merge pull request #16 from Lnc/osl_int

Update osl_int
Add osl_pluto_unroll extension
Add pluto_unroll extension documentation
Add .scop test for pluto_unroll extension
Update tests/Makefile.am and CMakeLists.txt for tests
Apply coding style in tests
Add osl_int_get_d function
Merge pull request #18 from Lnc/osl_pluto_unroll_final

Add osl_pluto_unroll extension
Add osl_int_sscanf function