Update INSTALL.md

Cleaned up bogus configure parameters and updated Win32 build instructions.
Remove error printouts

A library should never print anything, so removing the perror()
printouts.
Merge pull request #556 from jin-eld/no-printouts

Remove error printouts
Merge pull request #555 from jin-eld/readme

Cleaned up bogus configure parameters and updated Win32 build instructions in INSTALL
Possible bugs fixed, all received strings now force NULL terminate.
Merge branch 'master' of https://github.com/irungentoo/ProjectTox-Core