Fixed installation for Zigbee option 1

Added missing libraries for Zigbee console

Update URLs and added Zigbee console

Updated URLs to jfrog (again)

Removed specific references to 2.5.2

Merge pull request #4 from openhab-5iver/use-bintray

Change to use bintray for all downloads

Merge pull request #3 from openhab-5iver/update-download-urls

Updated download URLs

Update README.md