TTFFont.parse should call *Table constructors with explicit @tag param

lib/font/table.coffee

@@ -1,6 +1,5 @@
 class Table
-  constructor: (@file, @tag) ->
-    @tag ?= @constructor.name.replace('Table', '').toLowerCase()
+  constructor: (@file) ->
     info = @file.directory.tables[@tag]
     @exists = !!info
 

lib/font/tables/cmap.coffee

@@ -2,6 +2,10 @@ Table = require '../table'
 Data = require '../../data'
 
 class CmapTable extends Table
+  constructor: ->
+    @tag = 'cmap'
+    super
+
   parse: (data) ->
     data.pos = @offset
 

lib/font/tables/glyf.coffee

@@ -2,6 +2,10 @@ Table = require '../table'
 Data = require '../../data'
 
 class GlyfTable extends Table
+  constructor: ->
+    @tag = 'glyf'
+    super
+
   parse: (data) ->
     # We're not going to parse the whole glyf table, just the glyfs we need.  See below.
     @cache = {}

lib/font/tables/head.coffee

@@ -2,6 +2,10 @@ Table = require '../table'
 Data = require '../../data'
 
 class HeadTable extends Table
+  constructor: ->
+    @tag = 'head'
+    super
+
   parse: (data) ->
     data.pos = @offset
 

lib/font/tables/hhea.coffee

@@ -2,6 +2,10 @@ Table = require '../table'
 Data = require '../../data'
 
 class HheaTable extends Table
+  constructor: ->
+    @tag = 'hhea'
+    super
+
   parse: (data) ->
     data.pos = @offset
 

lib/font/tables/hmtx.coffee

@@ -2,6 +2,10 @@ Table = require '../table'
 Data = require '../../data'
 
 class HmtxTable extends Table
+  constructor: ->
+    @tag = 'hmtx'
+    super
+
   parse: (data) ->
     data.pos = @offset
 

lib/font/tables/loca.coffee

@@ -2,6 +2,10 @@ Table = require '../table'
 Data = require '../../data'
 
 class LocaTable extends Table
+  constructor: ->
+    @tag = 'loca'
+    super
+
   parse: (data) ->
     data.pos = @offset
     format = @file.head.indexToLocFormat

lib/font/tables/maxp.coffee

@@ -2,6 +2,10 @@ Table = require '../table'
 Data = require '../../data'
 
 class MaxpTable extends Table
+  constructor: ->
+    @tag = 'maxp'
+    super
+
   parse: (data) ->
     data.pos = @offset
 

lib/font/tables/name.coffee

@@ -3,6 +3,10 @@ Data = require '../../data'
 utils = require '../utils'
 
 class NameTable extends Table
+  constructor: ->
+    @tag = 'name'
+    super
+
   parse: (data) ->
     data.pos = @offset
 

lib/font/tables/post.coffee

@@ -2,6 +2,10 @@ Table = require '../table'
 Data = require '../../data'
 
 class PostTable extends Table
+  constructor: ->
+    @tag = 'post'
+    super
+
   parse: (data) ->
     data.pos = @offset