Adding dev server overrides

[cereallarceny]

I added the ability to add overrides to the default dev server configuration. This should only be merged after #31

[cereallarceny]

@yusinto I've updated this PR to have all the changes from #31 and now is much smaller. This simply adds the ability to all the dev server to be overridden. I've already confirmed this works on my own local setup and have written tests for this. I believe it's very safe to merge and you can continue closing all other PR's after merging this one.

[cereallarceny]

@yusinto I have also now repaired the build from linting discrepancies. They should now be fixed in this PR.

[yusinto]

Hi @cereallarceny thanks for this, I've left a comment here so please take a look. Thank you.

[cereallarceny]

@yusinto I'm happy for us to use your logger. It doesn't matter to me what logging class we use - but I figured mine would be good enough for most use-cases. I just want to turn off your logs. If you want to add a finer level of control, then you can do so in a future PR. For now though, I think this offers reasonable functionality.

[yusinto]

If you want to add a finer level of control, then you can do so in a future PR.

I'm happy to do the custom logger bit in the future. In which case for this PR, perhaps you can omit the verbose options for now until I have that in place. This does mean you'll have to put up with the console logs until my pr comes around though, so apologies if advance for that if this bothers you tremendously.

[cereallarceny]

@yusinto Yes, that does disappoint me. Silencing all the logs of your library's output is the final thing I need to be able to use this library in production. The lack of this feature is preventing me from launching my own library. I hope you can address this in your own PR soon - otherwise, I'm going to fork this project and make my own changes. I'm just trying to help here. 😄

Either way, I've changed your devServer config to be passed the way you want - you're right, much cleaner! I've also removed the verbose flag so that you may do your PR.

Also, your test suite wasn't passing. I wasn't sure quite why so I fixed a bunch of unrelated problems with the test suite and everything is correct now. Looks like some typos. You can merge now, I've done everything you requested.

[cereallarceny]

@yusinto Can we please get this merged? I'm going to need to fork and separately release my own version of this library if we can't hurry along merging pull requests.

[yusinto]

@cereallarceny thanks for your work! I'll create a new release today. Thanks again for helping out.