Update config_sample.py

Clean-up config template.
Merge remote-tracking branch 'ahmedbodi/master'
Merge branch 'multicoin'
fix db loading
don't try to switch coins if it's disabled in settings
Merge pull request #227 from daygle/patch-1

Update config_sample.py
Status Update
attempt at async db
attempt at async db
Merge remote-tracking branch 'ahmedbodi/master'

Conflicts:
	conf/config_sample.py
Merge branch 'master' into nonblockingdb
attempt at async db
attempt at async db
attempt at async db
attempt at async db
attempt at async db
attempt at async db
attempt at async db
attempt at async db
attempt at async db