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

[yelouafi]

the bug appears when the library is bundled with browserify+uglify (or any other minify lib); by default uglify task mangle function names so in the Table constructor code like @constructor.name would return some 'b'or 'c'which leads to errors hard to debug (since the problem appears only with the minified versions; like this one bpampuch/pdfmake#18 or this one bpampuch/pdfmake#60 )

Is it good or bad to rely on function names at runtime (especially if we are targeting the browser)?
See this interesting discussion pugjs/pug#298 (uglify vs jade)

[devongovett]

Interesting bug. If I'm not mistaken, the tag parameter should be e.g. 'head' not 'HeadTable'. This line that does the replacement only applies when it uses the constructor names.

IMO we should remove that line entirely since it doesn't work when minified, and just include the tag on the prototype of each table subclass instead of passing it in.

[yelouafi]

Excuse me, didn't pay enough attention (in 2 times!)

Those are my first CoffeeScript lines so maybe i've omitted something

[devongovett]

Merged, thanks!