moved everything into /trunk/ to create the standard svn layout, for use with tools that require this (eg. git-svn). IMPORTANT: do NOT do an `svn up`. instead, re-use your working copy's existing files with `svn switch` (http://svnbook.red-bean.com/en/1.6/svn.ref.svn.c.switch.html).

xpath_func.py: process(): Fixed bug where XPath elem's other_branches were not also processed

xpath_func.py: _forEach: Made syntax more natural-looking by using values instead of names for string args and attrs instead of branches for array args

xpath_func.py: _forEach: Fixed to support _val replacements anywhere, by doing a string-based search-and-replace on a quoted XPath instead of a list-based search-and-replace on an already-parsed XPath

xpath_func.py: Renamed _for to _forEach. Finished implementing _forEach.

xpath_func.py: Changed XPath function signature to take arguments (args, path), and process() to parse out the args. Implemented basic for that repeats its do arg as many times as there are in elements.

Added xpath_func.py for XPath "function" elements that transform their subpaths