* text.C (parse_text): read environment from layout file too. Now,

	* text.C (parse_text): read environment from layout file too. Now,
	all layout entries are supported (but many hacks remain); note
	that the nesting support is broken and will have to be completely
	redone

	* table.C (handle_tabular): make the output more similar to LyX
	and fix a little

	* text.C (output_layout): fix handling of optional argument
	(parse_text): small tweaks to make output format closer to lyx
	format; support \tableofcontents; fix/improve support for various
	special characters

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7417 a592a061-630c-0410-9148-cb99ea01b6c8