Use piplib_int_t
Apply coding style in piplib.h
Remove all #ifdef PIPLIB_INT_GMP
Fix warnings
Add piplib_osl_int library
Creation of 4 libraries: piplib_sp, piplib_dp, piplib_gmp, piplib_osl_int
Fix include guards
Fix bezout function
Update tab.c and traiter.c
Fix comment in CMakeLists.txt
Bring back old names
Rename piplib_osl_int to piplib_osl
Update GNU build system
Add some macros for compatibility
Bring back old names
Apply coding style
Fix names of chercher and solution functions
Remove direct uses of PIPLIB_NAME macro
Remove piplib_osl library
Merge pull request #2 from Lnc/4_libs

Creation of 3 libraries: piplib_sp, piplib_dp, piplib_gmp