Update line-map

src/app/line-map.coffee

@@ -7,6 +7,8 @@ module.exports =
 class LineMap
   maxScreenLineLength: 0
 
+  ### Internal ###
+
   constructor: ->
     @screenLines = []
 
@@ -28,6 +30,8 @@ class LineMap
     for screenLine in maxLengthCandidates
       @maxScreenLineLength = Math.max(@maxScreenLineLength, screenLine.text.length)
 
+  ### Public ###
+
   # Gets the line for the given screen row.
   #
   # screenRow - A {Number} indicating the screen row.
@@ -185,7 +189,8 @@ class LineMap
     end = @bufferPositionForScreenPosition(screenRange.end)
     new Range(start, end)
 
-  # Internal:
+  ### Internal ###
+
   logLines: (start=0, end=@screenLineCount() - 1)->
     for row in [start..end]
       line = @lineForScreenRow(row).text