[wavesplatform/Waves] NODE-1017: Generator Implrovements (#1427)

You can view, comment on, or merge this pull request online at:

https://github.com/wavesplatform/Waves/pull/1427

— Commit Summary —

* NODE-1017: Preconditions added
* NODE-1017: Comment settings example

— File Changes —

M generator/src/main/resources/application.conf (35)
A generator/src/main/scala/com.wavesplatform.generator/Preconditions.scala (136)
M generator/src/main/scala/com.wavesplatform.generator/TransactionsGeneratorApp.scala (21)
M generator/src/main/scala/com.wavesplatform.generator/Worker.scala (38)
M generator/src/main/scala/com.wavesplatform.generator/config/FicusImplicits.scala (10)
A generator/src/main/scala/com.wavesplatform.generator/utils/Universe.scala (10)
M src/main/scala/com/wavesplatform/transaction/assets/IssueTransactionV1.scala (7)

— Patch Links —

https://github.com/wavesplatform/Waves/pull/1427.patch
https://github.com/wavesplatform/Waves/pull/1427.diff