Gradle plugins are now able to be published to artifactory.
* Upgraded to gradle 4.3 * Replaced a null check with an elvis expression
Cordformation rewritten in kotlin.
Added CorDapp gradle plugin written in Kotlin and bumped the version of gradle plugins to 2.0.0 to reflect that this backwards incompatible change is a part of the on going stabilisation of the Corda gradle plugin suite.
