This shouldn't have been like this in the first place. I must've been
really sleepy when I was writing this eclass.
Signed-off-by: Anna (cybertailor) Vyalkova <cyber+gentoo@sysrq.in>
"dowrapper" had too much magic: it relied on specifically files being
present in ${FILESDIR}, which is just… wrong.
It will burn in flames without any backwards compatibility. New
"boinc_install_wrapper" function replaces it.
Signed-off-by: Anna (cybertailor) Vyalkova <cyber+gentoo@sysrq.in>