Dev Guide should give more guidance on type safety, code quality, code style, etc.

[oscardssmith]

We should mention the following
4 spaces
javadoc
dev-list
options -> editor -> code completion -> auto popup
create a settings bundle to import?
We should add sample code, like the code from Netbeans tabs and spaces thing.
We could separate into code style and code quality.

[pdurbin]

@oscardssmith thanks. Here's the chicken scratch from my whiteboard:

[pdurbin]

@oscardssmith I updated the title. Are you interested in starting a new branch to help out in this area? Also, please check out the comment I just left for @michbarsinai at #3903 (comment)

Thank you to @bsilverstein95 for demonstrating yesterday how one must email the dataverse-dev list when a SQL script is needed to keep one's dev environment in working order after pulling the latest from develop: https://groups.google.com/d/msg/dataverse-dev/l0eDX1vXfvY/ZMRrnQWbBAAJ . From the dev guide we can link to it as an example.

[pdurbin]

When we work on this issue let's set expectations for code quality with regard to these issues:

• HandlenetServiceBean must not catch Throwables HandlenetServiceBean must not catch Throwables #2674
• Implementation of Object.finalize() must call super.finalize() Implementation of Object.finalize() must call super.finalize() #2675
• Fields in a Serializable class must be transient or Serializable Fields in a Serializable class must be transient or Serializable #2676
• Utils.isNumeric returns true for empty string Utils.isNumeric returns true for empty string #3551
• Cleanup: Convert all JPA queries to use @NamedQuery Cleanup: Convert all JPA queries to use @NamedQuery #3903

Also, for #3198 let's add a link to https://docs.google.com/a/harvard.edu/presentation/d/1aHjOMy8FIbMVyJEZu_m4ab4ftutgQiC8y6HM47Am2z0/edit?usp=sharing