Now it checks if the account have access to the destination AZ

Cache of Summary and Recommendations, and setup parameter for the ref…

…resh of information

Remove the rails cache and use the DB, Option to give preference to t…

…he purchased account, join RIs

Merge branch 'master' of github.com:jros2300/reservedinstances

Conflicts:
	reservedinstances.cform

issue #4, error splitting RIs

doc updated

Removed windows instance type modifications, and Classic-VPC (same pr…

…ice)

Problem when there were RIs for Windows with SQL

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README finished