PEP8
Simplify the logic
Remove unused functions
Use connection objects to be more pluggable into current tools
Minor fix for __repr__
Use cmp to sort items
Pass dict instead of list
Add region information
Use Linux/UNIX (Amazon VPC)
Merge remote-tracking branch 'taras/master' into sort_avail_instances
Update sample_out.txt
Merge pull request #1 from rail/simplify_api

Simplify API