Revert "Remove unnecessary includes"

Reverts agilecreativity/gem_bootstrap#3

Nick,

I found the problem with the generated codes. It won't run.
Could you try the following on the changes you proposed.
 
```
# first remove all version of the gem
gem uninstall gem_bootstrap
# then try to 
bundle 
rake install
# then create the new gem with your version 
# then try bundle && rake install your new gem 
```
I will take a look at this later. If you do find a problem just re-submit the pull request.

Thanks, 
Nick
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