add UICoreTextView(CoreTextView.h & CoreTextView.mm)
parse reply content from HTML to string in detail view.
Merge commit '95e34e2a280fd6eca78c228d1bcd96817f072382'

Conflicts:
	CNodeJS/Sections/Detail/DetailViewController.swift
Merge pull request #6 from xuyouyang/master

parse reply content from HTML to string in detail view