Revert "Removed IntelliJ files from git and modified gitignore to exclude them."

This reverts commit ac0561333d58c7f948ea9015f61c08b406b6b541.

Revert "Creating a Play 2.2 app. Using version 2.2 rather that 2.3 so that plugins"

This reverts commit d14234cc10bb2e0d8727d667203dbe1e3b1e636d.

Conflicts:
	.gitignore
	.idea/modules/preprid.iml
	build.sbt
	project/plugins.sbt

Revert "Boot strapping SecureSocial. Still work in progress."

This reverts commit 4998ea670203a5a4e9cec83ddec4f104c8e2652e.