added support for .yaml along with .yml

[pranavgupta1234]

Fixes #83
As discussed before adding support for arbitrary extensions is not a good idea but we can defintely add support for .yaml extension.

As fnmatch was doing simple extension matching so I removed it and used simple endswith function as I was unable to find cleaner API which can utilize fnmatch.filter(...) with list of patterns. Let me know your thoughts on this.

[AndrewPickford]

It's nice simple change and I don't see any issue in supporting a .yaml file extension as well as .yml (it's even on the original reclass todo list). But could you update the yaml_git storage type as well, otherwise I think the change breaks yaml_git storage.

[pranavgupta1234]

@AndrewPickford thanks for the review. Please have a look now.

[AndrewPickford]

Did a quick check of the yaml_git change and it works fine for me. One question: what's the reason for wrapping file.name in a str()? It works fine without for me.

[pranavgupta1234]

Yes, its unnecessary. Refactored.

[AndrewPickford]

@epcim Could you merge in this pull request. Once that's done I'll do a little refactoring and pull out the separate definitions of FILE_EXTENSION and then put them somewhere central.

[pranavgupta1234]

@epcim any update ?

[m-d-johnson]

This would be useful for me to have - any idea if this is likely to be merged?

[pranavgupta1234]

@epcim ping.

[epcim]

Sorry for delay. Merged