elixir 0.1.2

• Extended expr_replace() to accept functions as replacements.
• Fixed a bug in expr_replace() that would sometimes not replace all instances of a pattern.
• Added parameter subloc to expr_match().

elixir 0.1.1

• elixir now works with formulas.
• Removed dependencies on data.table and methods packages.

elixir 0.1.0

• Initial CRAN submission.