jq 1.4 is in Debian

jq 1.4 is in Debian, please see https://tracker.debian.org/pkg/jq
Merge pull request #483 from else/master

jq 1.4 is in Debian
Fix #484, try/catch syntax has conflicts
Fix bison empty rule warnings (#433, partial fix)
Add -n to short usage msg; fix --arg msg
Add -i option to edit files in place (fix #105)