* Default rent allowance to max_value

* Bump spec version

* Fix exec test

* Address grumbles

* Make test comment less specific

* Default rent_allowance to max_value in exec

* Check default balance on creation

* Check default balance in deploy

* Use hex constant

Co-Authored-By: ascjones <ascjones@gmail.com>

* More specific code const

Co-Authored-By: ascjones <ascjones@gmail.com>

* Update srml/contract/src/tests.rs

Co-Authored-By: ascjones <ascjones@gmail.com>

* Update srml/contract/src/tests.rs

Co-Authored-By: ascjones <ascjones@gmail.com>

* Update srml/contract/src/tests.rs

Co-Authored-By: ascjones <ascjones@gmail.com>