Prevent reuse of Taskd after being destroyed
Make wait time configurable. Could be needed in slower machines.
PKI

 * Working certificates with taskd-1.0.0 and taskw-2.3.0
UnitTests

 * Taskd and Taskw classes for testing are now available
 * Testing of server and client can now be performed.
 * The newer test wrappers will eventually replace the BaseTest class
Merge pull request #4 in TM/task from ~UNODE/task:2.4.0 to 2.4.0

* commit '715a414abd1d2dcd9ee83cd535656b95d0245733':
  UnitTests
  PKI
  Make wait time configurable. Could be needed in slower machines.
  Prevent reuse of Taskd after being destroyed