Add the ability to pass title case headers to an HTTP server

[wonderix]

My original PR is working when the headers are passed in the constructor to newHttpClient

client = newHttpClient(headers=newHttpHeader(...,titleCase=true))

but it is not working in case the headers are passed in each request.

client.request(url,HttpGet,headers=newHttpHeader(...,titleCase=true))

This is caused by the fact that a new HttpHeaderobject is created in override.

Therefore, I would like to revert my original PR and propose a new solution.

[dom96]

Did your last implementation make it into a release? If so we will be breaking an API that was in a released version... I guess we can be pragmatic here, but ugh. Any chance you could fix the problem instead of reimplementing your original solution?

[wonderix]

The last PR was merged after Release 1.2.0. Therefore, I suggested a new implementation. It would also be possible to fix the problem. But I'm not sure how to merge two HttpHeaders with different titleCase setting in override

[wonderix]

A solution without breaking change might look like this

[Araq]

Since it happened after 1.2, let's break it.

[dom96]

Sure, let's keep breaking things, even when the alternative is much better. Seriously, look at @wonderix's link, that's what you should PR instead. It makes sense to have this option as part of the HttpHeaders anyway.