Deprecate tryFinally and tryCatchFinally

[wagenet]

Still needs deprecation link

[stefanpenner]

we also use this internally to mitigate that old safari bug.

• Are we also dropping support for that version of safari?
• do we need to remove those deprecated internal usages?

[wagenet]

@stefanpenner I don't think we can remove internal usages until 2.0 since it would mean dropping browser support. The number of desktop users affected is very small since it is present in early Safari 6.0 but is fixed by 6.0.5. However, all iOS 6 users are susceptible. I've tested on both 6.0 and 6.1. According to http://david-smith.org/iosversionstats/, 5% of users still use iOS 6.x. While I think we can make a good case for dropping this is 2.0, I don't think we can drop from 1.x.

[stefanpenner]

While I think we can make a good case for dropping this is 2.0, I don't think we can drop from 1.x.

sounds good.

[wagenet]

@rwjblue Did we want a deprecation link for this?