Fix compile warning
Fix openacd start-up and key generation
Add bootstrap
Add make rpms creation

* `make rpms' creates rpm for local archi
* app.src is created from app.src.in which takes in package name and vsn
  (the resulting app.src is still committed for compatiblity with rebar)
* spec file is changed to create 'erlang-openacd' which contains the erlang
  library for openacd, and 'openacd' which contains the config, binaries, and
  other files necessary to run openacd
Add buildno generation
Add clean-up of old rpms