updating templated cell render check

updating templated cell render check for newer versions without
rowTemplate (deprecated)
Merge pull request #17 from damyanpetev/master

updated templated cell render check
Adding some charts binding, directive matching changes

- DataChart, Sparkline, FunnelChart binding support
- Expanding directive matching:
- attribute matching now also work with attribute options
- class matching
- preventing content tag from not being unwrapped and from being
included in options
Merge pull request #18 from damyanpetev/master

Adding some charts binding, directive matching changes
improving nested options handling + misc
improving expression as option handling

- limiting expression match to prevent false positives from templates
- expanding replace to also strip one-time binding double colons (e.g.
{{::prop}} )
merging directives

- just one constructor for all matches
- replace allows attribute matches to contain templates without parse
errors
- directive(control) name is exposed in templating phase, no need for
getControlName()
Merge pull request #19 from damyanpetev/master

improving nested options handling + misc
Code cleanup
option handling fixes
changing grid diff/watcher for faster handling
igDataChart binding improvement
adding destroy cleanup for both scope and element; re-create tests fix; watcher marking
preventing applying grid updating changes from tiggering the watcher
grid watcher primary key from widget option instead attrs
Bugs fixes and and fully implement persistence
Updated home page and optimized master/detail
Updated README
Updated README
declarative events settings now eval and pass directly to options ( instead of .on() handler )