Manpages of gambc in Debian experimental

• gambcomp-C(1)
• gambcomp-java(1)
• gambcomp-js(1)
• gambcomp-php(1)
• gambcomp-python(1)
• gambcomp-ruby(1)
• gambdoc(1)
• gsc-script(1)
• gsc(1)
• gsi-script(1)
• gsi(1)
• scheme-ieee-1178-1990(1)
• scheme-r4rs(1)
• scheme-r5rs(1)
• scheme-srfi-0(1)
• six-script(1)
• six(1)