Merge pull request #14 from barrysteyn/master

functionaliy to ignore content in <pre> and <code>
option to add any other tag to the ignore list.
Revert "functionaliy to ignore content in <pre> and <code> tags as well as allowing the user to specify additional tags that can be ignored"

This reverts commit d3de0e02fce1af141b6bdb416d10af2ef4002f8c.