Click-elem2man: Install element manual pages in section 7.

Apparently section n is discouraged by Linux standards. Error
from lintian, reported by Francesco Berni. Also install man
pages gzipped.
More elementdoc nits.
stridesched: fix initialize

This was preventing the signal/notifier optimization path from working
for StrideSched.  The conditional is here because this code is shared by
StrideSwitch.

Signed-off-by: Cliff Frey <cliff@meraki.com>
Merge pull request #94 from clifffrey/stridesched-fix

stridesched: fix initialize
Merge branch 'master' of https://github.com/kohler/click