Start correctly on Windows
Tidy gradle script and add 'start' instructions to docs
Get Oracle unit tests passing on Windows

Changed line endings to utilise platform agnostic function
Combine new instructions with existing ones

Combine the new instructions for using `gradle start` with the existing ones under the ''Building'' section.
Revert "Get Oracle unit tests passing on Windows"

This reverts commit 55aae640a115c9dabaa3bc5a88cb9aa0fa7ddc01.
Add .gitattributes to line endings for certain files