* Change the meaning of EXTRAVERBOSE; previously, it was a y/n option
to make things more verbose. Add extra levels of verbosity (0, 1, 2 so
far) and a new vvecho() function for callers to use.
+ * With EXTRAVERBOSE==2 or more, make run_command() print out each
+ command as it's run. (Closes issue 39).
[ Colin Tuckley ]
* replace deprecated egrep with grep -E (Closes issue 24).