Remove Node Nonce

[ceilican]

• remove nonce from settings
• make bindAddress and declaredAddress parse as InetSocketAddress instead of String.
• investigate why one test is failing:

[info] - NodeViewHolder: simple forking *** FAILED ***
[info]   java.lang.AssertionError: assertion failed: timeout (3 seconds) during expectMsgClass waiting for class scorex.core.NodeViewHolder$SyntacticallySuccessfulModifier
[info]   at scala.Predef$.assert(Predef.scala:219)
[info]   at akka.testkit.TestKitBase.expectMsgClass_internal(TestKit.scala:472)
[info]   at akka.testkit.TestKitBase.expectMsgType(TestKit.scala:445)
[info]   at akka.testkit.TestKitBase.expectMsgType$(TestKit.scala:445)
[info]   at akka.testkit.TestKit.expectMsgType(TestKit.scala:814)
[info]   at scorex.testkit.properties.NodeViewHolderTests.$anonfun$$init$$32(NodeViewHolderTests.scala:199)
[info]   at scorex.testkit.properties.NodeViewHolderTests.$anonfun$$init$$32$adapted(NodeViewHolderTests.scala:173)
[info]   at scorex.testkit.properties.NodeViewHolderTests.withFixture(NodeViewHolderTests.scala:47)
[info]   at scorex.testkit.properties.NodeViewHolderTests.$anonfun$$init$$31(NodeViewHolderTests.scala:173)
[info]   at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)

[ceilican]

One test is failing. I will investigate why.

[coveralls]

Changes Unknown when pulling 1fffa9e on ceilican:remove-node-nonce into ** on ScorexFoundation:master**.

[ceilican]

It turns out that the test succeeded when I re-ran the build in Travis. So, this is another test that is failing intermittently. I will add it to issue #119.

[coveralls]

Coverage remained the same at 45.587% when pulling 2723a7a on ceilican:remove-node-nonce into e39d606 on ScorexFoundation:master.

[coveralls]

Coverage remained the same at 45.587% when pulling 4bf6512 on ceilican:remove-node-nonce into 77593e2 on ScorexFoundation:master.

[ceilican]

@kushti , because of the removal of nodeNonce, I had to change a few things in the handshake. I left a few "TODOs" in places that should be checked carefully by you, because my changes may have broken the intended handshake logic.

[coveralls]

Coverage remained the same at 45.587% when pulling 8a9c454 on ceilican:remove-node-nonce into 77593e2 on ScorexFoundation:master.

[coveralls]

Changes Unknown when pulling 95fe994 on ceilican:remove-node-nonce into ** on ScorexFoundation:master**.