lpeg_lexer: Add last_token_matches and sub_lex match time variants
Make howl-*-eval command push the result to the clipboard
Erb mode: Handle lexing call without buffer

Can happen when sub lexing.
Haml: sub lex filters

E.g. javascript, etc.
Ruby: Try to avoid over-eager lexing of regexes

Literal regex syntax is nice, but oh my is it a pain in the
proverbial but to lex (division vs regex).
Solarized light theme: make error foreground pink

Instead of white, to be at least somewhat more readable when at
the current line.
HTML mode: Don't lex strings within HTML content
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