Changed parameter checking and default --ec2 and --elb to list instances
Instance running issues with namespace is ELB -> fixed
bapp
Added '+' as an exception to parse_threshold
management packs, rename + new elb pack
changed hostgroup name to aws-ec2-instances
Merge branch 'stable'
Fixed bug for scriptAction _billing_
Added management pack for billing
minor changes to management pack for elb
New release

Merge branch 'master' into stable
New release 0.1.4b (0.1.3b was a bad merge)