Merge pull request #60 from isaacs/master

package: Use bin link rather than symlink
changelog for json bin fix in pull #60
'make versioncheck' fix for no bin/json symlink anymore
prepare for 7.0.1 release
prep for future dev
README: Add json2 to Alternatives list

Add my little project "json2" to the alternatives list.
It implements xml2/2xml approach to JSON.
Merge pull request #61 from vi/master

README: Add json2 to Alternatives list
[issue #68] Fix `--keys, -k` handling in streaming mode, i.e. `json -gak`
prepare for 7.0.2 release
prep for future dev