updating validation workflow for large # errors and other small tweaks

[kflemin]

Fixes #129

• several formatting fixes on the use case form page and validation results page
• hackish workaround for files that have a large # of errors...the to_dict() method times out on those errors, so bail out after 5mins (this timeout can be adjusted) and use the .validate() method instead which only returns the first error encountered.

[coveralls]

Pull Request Test Coverage Report for Build 1219028397

• 8 of 41 (19.51%) changed or added relevant lines in 1 file are covered.
• 908 unchanged lines in 8 files lost coverage.
• Overall coverage increased (+0.09%) to 43.299%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
bsyncviewer/lib/validator/workflow.py	8	41	19.51%
<!--	Total:	8	41	19.51%	-->

Files with Coverage Reduction	New Missed Lines	%
bsyncviewer/lib/validator/workflow.py	1	35.11%
.tox/python/lib/python3.6/site-packages/bs4/formatter.py	9	76.6%
.tox/python/lib/python3.6/site-packages/bs4/builder/init.py	30	47.93%
.tox/python/lib/python3.6/site-packages/bs4/builder/_htmlparser.py	33	21.67%
.tox/python/lib/python3.6/site-packages/bs4/builder/_lxml.py	42	30.25%
.tox/python/lib/python3.6/site-packages/bs4/init.py	159	15.82%
.tox/python/lib/python3.6/site-packages/bs4/dammit.py	200	32.46%
.tox/python/lib/python3.6/site-packages/bs4/element.py	434	22.41%
<!--	Total:	908		-->

Totals
Change from base Build 1151304476:	0.09%
Covered Lines:	38904
Relevant Lines:	89849

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💛 - Coveralls