Suppress output from git clean and configure#2

Merged

haileys merged 3 commits intogithub-2.0.0from

Aug 30, 2013

Commits on Aug 30, 2013

only print output of configure, etc. if they fail
Charlie Somerville
committed
silence make and make install too
Charlie Somerville
committed
send stderr to the log too
Charlie Somerville
committed