some compatibility test scripts

doc/compiler_compatibility.json

+{
+  "msvc": [
+    {
+      "os": "win-32", 
+      "boost": "1.60.0", 
+      "version": "14.0", 
+      "flags": [
+        "ENABLE_COMPRESSION=ON", 
+        "ENABLE_CXX11=ON", 
+        "ENABLE_EXTENSIONS=ON", 
+        "ENABLE_BASE_PROBLEMS=ON", 
+        "ENABLE_UMFPACK=ON"
+      ]
+    }
+  ], 
+  "g++": [
+    {
+      "os": "linux-64", 
+      "boost": "1.55.0", 
+      "version": "5.3.0", 
+      "flags": [
+        "ENABLE_COMPRESSION=ON", 
+        "ENABLE_CXX11=ON", 
+        "ENABLE_EXTENSIONS=ON", 
+        "ENABLE_BASE_PROBLEMS=ON", 
+        "ENABLE_UMFPACK=ON"
+      ]
+    }
+  ], 
+  "intel": [
+    {}
+  ], 
+  "clang": [
+    {}
+  ]
+}
\ No newline at end of file

doc/compiler_compatibility.py

+#!/usr/bin/python
+
+import json
+
+with open("compiler_compatibility.json","r") as in_:
+  compiler = json.load(in_)
+
+compiler["g++"].append({
+    "version": "6.0.0 20151003",
+    "flags": [ "ENABLE_COMPRESSION=ON", "ENABLE_CXX11=ON", "ENABLE_EXTENSIONS=ON", "ENABLE_BASE_PROBLEMS=ON", "ENABLE_UMFPACK=ON" ],
+    "os": "linux-64",
+    "boost": "1.55.0"})
+      
+with open("compiler_compatibility.json","w") as out:
+  json.dump(compiler, out, indent=2)