made subcategories for cloud modules for better organization
Merge pull request #268 from bcoca/subclouds

made subcategories for cloud modules for better organization
Some more module categorization.
Renames.
Move internal category to utilities to remove one more category from the left hand menu, keeping it concise.
added __init__.py to new cloud subcategories so builds work again
Merge pull request #276 from bcoca/fixed_cloudmodules_build

added __init__.py to new cloud subcategories so builds work again