Merge pull request #4 from wri/thomas

changing config structure
Update logging.py
Update logging.py
add mining layer
update settings

Added Python expression as option for field values
added config/system.py
addes gfw_sync.py

script is now called by gfw_sync. can add layer name(s) in shell to
update only certain layers
readme
remove config files from repo
remove
simplifying path
readme
adding Liberia data
fix / escape
Merge pull request #5 from wri/master

Master