no-op declare exercises compatible with problem-specifications

input object

hamming 2.1.0
exercism/problem-specifications#1129

largest-series-product 1.1.0
exercism/problem-specifications#1114

leap 1.2.0
exercism/problem-specifications#1112

react 1.1.0
exercism/problem-specifications#1130

rna-transcription 1.2.0
exercism/problem-specifications#1111

sieve 1.1.0
exercism/problem-specifications#1105

Author: petertseng

exercises/hamming/source/hamming/HammingTest.ceylon

@@ -1,6 +1,6 @@
 import ceylon.test { ... }
 
-// Tests adapted from problem-specifications version 2.0.1
+// Tests adapted from problem-specifications version 2.1.0
 {[String, String, Integer?]*} cases => {
   // identical strands
   ["A", "A", 0],

exercises/largest-series-product/source/largestseriesproduct/SeriesTest.ceylon

@@ -1,6 +1,6 @@
 import ceylon.test { ... }
 
-// Tests adapted from problem-specifications version 1.0.0
+// Tests adapted from problem-specifications version 1.1.0
 {[String, Integer, Integer?]*} cases => {
   // finds the largest product if span equals length
   ["29", 2, 18],

exercises/leap/source/leap/LeapTest.ceylon

@@ -1,6 +1,6 @@
 import ceylon.test { ... }
 
-// Tests adapted from problem-specifications version 1.2.0
+// Tests adapted from problem-specifications version 1.3.0
 {[Integer, Boolean]*} cases =>
   {[2015, false], [1996, true], [2100, false], [2000, true]};
 

exercises/react/source/react/ReactorTest.ceylon

@@ -1,6 +1,6 @@
 import ceylon.test { ... }
 
-// Tests adapted from problem-specifications version 1.0.0
+// Tests adapted from problem-specifications version 1.1.0
 
 test
 void inputCellsHaveValue() {

exercises/rna-transcription/source/rnatranscription/RNATest.ceylon

@@ -1,6 +1,6 @@
 import ceylon.test { ... }
 
-// Tests adapted from problem-specifications version 1.1.0
+// Tests adapted from problem-specifications version 1.2.0
 // The Ceylon track keeps the Error cases from 1.0.1 (removed in 1.1.0)
 {[String, String|Null]*} cases => {
   // empty strand

exercises/sieve/source/sieve/SieveTest.ceylon

@@ -1,6 +1,6 @@
 import ceylon.test { ... }
 
-// Tests adapted from problem-specifications version 1.0.0
+// Tests adapted from problem-specifications version 1.1.0
 {Integer*} cases => {1, 2, 10, 13, 1000};
 
 [Integer+] primes1000 = [