Fix to AddOcelot(), Config File Merge

[rjwester]

Fixes / New Feature #296

@CesarD recently brought up a bug in a reply to the old #296 issue. I ran into this issue myself in my own project and made some adjustments to accommodate.

Proposed Changes

• AddOcelot() now includes the correct config file with the specified environment
  • This was done by removing the excludeConfigName variable and altering the regex
  • The files that will be included would look something like this (assuming a Development env) ocelot.json, ocelot.api.json, ocelot.api.Development.json, etc.

[CesarD]

Thanks for taking care of this!

[thiagoloureiro]

Had to revert, issues with tests, can you double check please?

[csnance]

Any update on this? Merging the wrong set of config files by default is a significant issue for me.

Edit: I can workaround the issue by continuing to load the files manually it seems.