Bat for gradlew.bat idea

Just makes setup alot easier rather than navigating paths in cmd line
Runs gradlew for intellij, first running clean

Just makes setup alot easier rather than navigating paths in cmd line.
Make setup for new programmers easier.
removed redundant line
Merge pull request #671 from AaronLS/develop

Helper bat to create/refresh intellij project.
Maybe-fix for #665.