Prepare 0.4.23 release.

docs/bugs.json

@@ -1,4 +1,12 @@
 [
+    {
+        "name": "OneOfTwoConstructorsSkipped",
+        "summary": "If a contract has both a new-style constructor (using the constructor keyword) and an old-style constructor (a function with the same name as the contract) at the same time, one of them will be ignored.",
+        "description": "If a contract has both a new-style constructor (using the constructor keyword) and an old-style constructor (a function with the same name as the contract) at the same time, one of them will be ignored. There will be a compiler warning about the old-style constructor, so contracts only using new-style constructors are fine.",
+        "introduced": "0.4.22",
+        "fixed": "0.4.23",
+        "severity": "very low"
+    },
     {
         "name": "ZeroFunctionSelector",
         "summary": "It is possible to craft the name of a function such that it is executed instead of the fallback function in very specific circumstances.",

docs/bugs_by_version.json

@@ -423,9 +423,15 @@
         "released": "2018-03-07"
     }, 
     "0.4.22": {
-        "bugs": [], 
+        "bugs": [
+            "OneOfTwoConstructorsSkipped"
+        ], 
         "released": "2018-04-16"
     }, 
+    "0.4.23": {
+        "bugs": [], 
+        "released": "2018-04-19"
+    }, 
     "0.4.3": {
         "bugs": [
             "ZeroFunctionSelector",