sktm should make multiple attempts to query Jenkins

[idorax]

Since self.jk.is_build_complete() throws an exception when jenkins cannot be reached, we try to use 'try ... except ...' in is_build_complete() to avoid exceptions.

[coveralls]

Pull Request Test Coverage Report for Build 405

• 4 of 38 (10.53%) changed or added relevant lines in 2 files are covered.
• 2 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.7%) to 37.234%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
sktm/executable.py	1	5	20.0%
sktm/jenkins.py	3	33	9.09%
<!--	Total:	4	38	10.53%	-->

Files with Coverage Reduction	New Missed Lines	%
sktm/executable.py	1	16.13%
sktm/jenkins.py	1	12.06%
<!--	Total:	2		-->

Totals
Change from base Build 399:	-0.7%
Covered Lines:	465
Relevant Lines:	1122

---

💛 - Coveralls

[veruu]

Hi Vector! If you get to the final version of the pull, can you please squash the commits into a single one and let us know so we can check it?

[idorax]

Hi Veronika, the commits are squashed, please check it, thanks!

[idorax]

Veronika, I have updated the related .py files to support a command line option, please check again, thanks!

[idorax]

Thanks Veronika for your review, I have updated the related files according to your comments, please take a look again.

[idorax]

Reopen the PR after updating load_config().

[idorax]

Veronika, I updated the related files according to your comments, please take a look again. Your comments are much appreciated!

[idorax]

Thanks Veronika for review again, I have updated the rest of server.get_job and job.get_build calls to use __get_job()/__get_build(). And I'm not sure job.get_last_build() / job.get_next_build_number() should be enhanced to avoid random networking failures, so just leave them as they are. If you have more concerns/comments, please let me know, thank you very much.

[idorax]

Thanks Veronika again. Okay, I'll implement them this week and file another PR for review.