Adding IntelliJ Idea project files to the .gitignore
Merge pull request #8 from christav/gitignore-intellij

- Added IntelliJ Idea project files to the .gitignore
- Clarified the use of VideoStatus in the README
- Added additional hints regarding IDs and error codes
- Took Asgn1 out of beta
- Initial commit of the dependency injection example
- Initial commit of Spring Data JPA example
- Added comments to the application.properties configuration file
- Updated the README to make it clear what weeks Asgn1 covers
Merge pull request #2 from juleswhite/master

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