better update instruction files

[ryanpdx]

Should add more info to update instruction files.

Fields to add:

• version: a way version the changes to instruction file
• author: who authored the file
• ??

Also rename the instruction file to instructions.json. instructions.txt should still work and be consider legacy for the time being.

Example new instructions.json file:

{
   "version": 1,
    "author": "name",
    "instructions": [
        {
            "type": "DPKG_INSTALL",
            "items": ["package1.deb"]
         },
         {
            "type": "BASH_SCIPT",
            "items": ["bash_script1.sh"]
        }
    ]
}