Update coding style. Closes #2091.

CODING_GUIDELINES.md

@@ -10,7 +10,8 @@ int myFunction(int a)
     //code
 }
 
-myClass::myClass(int *parent) : m_parent(parent)
+myClass::myClass(int *parent)
+    : m_parent(parent)
 {
     //initialiaze
 }
@@ -116,7 +117,35 @@ Generally it will depend on the particular piece of code and would be determined
 
 UTF-8 and Unix-like line ending (LF). Unless some platform speficic files need other encodings/line endings.
 
-### 5. Misc.###
+### 5. Initialization lists.###
+Initialization lists should be vertical. This will allow for more easily readable diffs. The inilization colon should be indented and in its own line along with first argument. The rest of the arguments should be indented too and have the comma prepended.
+```c++
+myClass::myClass(int a, int b, int c, int d)
+    : priv_a(a)
+    , priv_b(b)
+    , priv_c(c)
+    , priv_d(d)
+{
+    //code
+}
+```
+
+### 6. Enums.###
+Enums should be vertical. This will allow for more easily readable diffs. The members should be indented.
+```c++
+enum days
+{
+    Monday,
+    Tuesday,
+    Wednesday,
+    Thursday,
+    Friday,
+    Saturday,
+    Sunday
+};
+```
+
+### 7. Misc.###
 
 * Line breaks for long lines with operation:
 
@@ -140,5 +169,5 @@ for(int a=0; a<b; ++b) {
 
 * Method definitions aren't allowed in header files
 
-###6. Not covered above###
+###8. Not covered above###
 If something isn't covered above, just follow the same style the file you are editing has. If that particular detail isn't present in the file you are editing, then use whatever the rest of the project uses.