More robust directive parsing

- Changed the char for splitting expressions from "," to "&"
- Regex for matching the key now takes into account quoted strings and escaped chars
- Added tests for the above special cases
make todomvc example work with new exp splitter
custom elements first pass
Improvements to observed array extension methods

- mutateFilter() is now remove(fn)
- replace() now also takes a function argument
- tests for above
- fix unit tests for IE9
unit tests for custom element
functional test for custom elements
revert back to use comma as exp splitter - wrap exp with () to escape
Directive parsing performance improvement

- test for existence of separators first before matching expensive RegExps
fix exp-parser so it correctly access variables that start with $ in expressions
functional test for nested sd-repeat
allow the use of Math inside expressions
0.6.0 - rename to Vue
ignore stuff
readme