sktm should make multiple attempts to query Jenkins (cont)

[idorax]

More functions to have multiple attempts to query Jenkins are added, e.g. o get_build_ids() o get_last_build() o get_next_build_number() o __build_job() o get_base_server_url() Please help to review, thanks.

[coveralls]

Pull Request Test Coverage Report for Build 417

• 5 of 24 (20.83%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.2%) to 37.032%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
sktm/jenkins.py	5	24	20.83%
<!--	Total:	5	24	20.83%	-->

Totals
Change from base Build 407:	-0.2%
Covered Lines:	468
Relevant Lines:	1138

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💛 - Coveralls

[idorax]

Veronika, I updated the code to use return getattr(job, method)() now. And these functions in the following are removed, o get_next_build_number() o __build_job() o get_base_server_url() that is, only find_build() is updated in this commit. Please take a look again, thanks!

[idorax]

Veronika, I have updated file jenkins.py according to your comments, please review again, thanks.

[idorax]

Veronika, __get_job_prop() is updated, please review again, thanks!