Remove dkjson, lua-bencode, lua-sha2

They have been merged into https://github.com/openwrt/packages.git
readme: make use of for-14.07 branch
cjdns: update source version
cjdns: bump release
cleanup: remove dotconfigs
doc: add UI screenshot
readme: update intro, add screenshot and contact
docker: fix shell script options
docker: fix well-meant but broken OpenWrt cleanup
cjdns: refactor makefile and package structure
luci-cjdns: refactor makefile and package structure
luci-cjdns: rename package to luci-app-cjdns
cjdns: update source version
cjdns: bump version
luci-app-cjdns: bump version
Revert "Remove dkjson, lua-bencode, lua-sha2"

This reverts commit ab54d8d526fe20212fe461e291850a12adcc2c71.
dkjson: backport makefile from openwrt/packages.git