Fixed a bug with quarterly report scheduling

monthofyear was being unset for all intervals which weren't yearly.  A check was added for
quarterly intervals to avoid unsetting monthofyear in that case and getting quarterly reports
once every month.  The behavior should now be as expected.  Bumped version number accordingly.

Signed-off-by: Daniel Hunsaker <danhunsaker@gmail.com>
Merge pull request #583 from danhunsaker/bugfix/mailreport/more-freqs-sched-bug

mailreport - Fixed a bug with quarterly report scheduling