Adding proxy support for pagerDuty client

[bogdangherca]

Hey folks,

I'm trying to use this awesome pagerDuty client behind a corporate proxy and I'm having the same issue as described here: #12

This PR introduces the ability to specify a proxy configuration when creating a PagerDutyEvents client. An alternative solution I've considered was to make the Unirest HTTP client automatically pick up system proxy env variables, but that might impact people already using this lib. Also, there are multiple env variables used for setting proxies since there is some convention around them, but not a standard (e.g. $http_proxy, $http.proxyHost)

Please take a look when you have a chance, I'm happy to address any of your comments here.

Thanks,
Bogdan.

[dikhan]

Hi @bogdangherca ,

Thanks for contributing to the repo, much appreciate it! And sorry for the delay it's taken to reply on this, I have been afk for a long time.

The build did not seem to pass so I took a look at it. After some reading, looks like there is an issue with Travis java builds and the Ubuntu distribution used by task. So created a PR #18 that seemed to fix that problem and after merging it to master I went ahead and rebased this branch with master to pick up the change. The build seems to be working again and looks like few tests are failing, I ran the tests locally and the tests are not passing either.

Are you able to run the tests successfully on your end? We need to fix the tests before the branch can be merged.

Thanks!

[dikhan]

@bogdangherca thanks again for opening the PR. I pushed few more commits to fix the build and the tests seem to be passing now so merging the PR.

[bogdangherca]

@dikhan Thanks for taking the time to fix the build and merge this, highly appreciated!