Add optional crowbar-applied boolean attribute to schema

Set it to false by default in the json and update proposal schema
version to 3.
Merge pull request #222 from bkutil/add_applied_attribute

Add optional crowbar-applied boolean attribute to schema
Port to Icehouse configs
Merge pull request #219 from dirkmueller/master_icehouse_conf

Port to Icehouse configs
Use a secure password

We really want to protect this from accidental
guessing.
Merge pull request #223 from dirkmueller/security

Use a secure password