Cleaning up standard out

Tracebacks don't belong in standard out, this commit
o puts all logging message in the log file
o changes the default log level to info
o prints a summary of the error to stdout in red if there was a failure

Change-Id: I1b398435f1f44338aa502f7a139c7fb83c2e3cd2
Perform tilde expansion on answer file

https://bugzilla.redhat.com/show_bug.cgi?id=906006

Change-Id: I54792ff0977ac617338d87d619a8024a2a1ff4f2
Merge "Cleaning up standard out" into folsom
Merge "Perform tilde expansion on answer file" into folsom