adblock-fast: update to 1.0.1-1

adblock-fast: update to 1.0.1-1

* update Makefile copyright info
* organize functions shared between the init script, uci-defaults and
  luci app in alphabetical order
* update error, warning and status messaging
* use single quotes instead double quotes for static text labels
* better warning for missing recommended packages
* rename dns function to resolver to better reflect its purpose
* improve resolver cleanup code
* move _resolver_config function inside resolver function to improve code readlibity
* rename _process_file_url to process_file_url_wrapper to better reflect its purpose
* add preflight check for available RAM vs total size of block lists
* move _config_add_url_size function inside adb_sizes function to improve code readlibity
* remove uci validation from status_service function to improve performance
* source init script from uci-defaults to include shared functions

Signed-off-by: Stan Grishin <stangri@melmac.ca>