Moved script commands to cmd folder.
Added schema module to hold db schemas as strings.
Import tag database.
Added a pickup section for pickup URL config.
Added function to read config into a dict.
Ignore dot files when reading component folders.
Set WMT_ENABLE_SESSIONS to True.
Use new command-line syntax for wmt-slave.
Merge branch 'master' of github.com:csdms/wmt

Conflicts:
	server/wmt/cmd/site_setup.py
	server/wmt/installer/site_setup.py
	wmt/installer/site_setup.py