Merge pull request #2 from bjuncosa/master

sg_rule change return from generator to list. closes: #1

sg_rule return a list instead of generator, so we can iterate over the rule more than once, for example to use the same sg_rule object into loop.
Fix minor bugs
Fix amazon behaviour... same history...
Default action for ls.
Improvements on templates
Remove long description from setup.py
Improvements in templates.