Merge pull request #6 from dstam/master

Some small fixes in the debian/changelog and debian/rules
dont do anything more if there was an error return from firewater
use exit codes
fix issue #7 no syntax error given for missing commas in lists
new dev version
setup copies more files to /etc/firewater.d/
fixes github issue #9 can't run if compiled ruleset does not exist
fix github issue #10 iptables-restore chokes on really long comment lines

so now long comment lines are truncated
up version number
point to online documentation