fix: error resolving host and basepath

[ubogdan]

Describe the PR
fix issue 474
fix issue 461
repair case tests

Relation issue
#474
#461

Additional context

[codecov-io]

Codecov Report

Merging #475 into master will decrease coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #475      +/-   ##
==========================================
- Coverage    86.6%   86.58%   -0.02%     
==========================================
  Files           7        7              
  Lines        1560     1558       -2     
==========================================
- Hits         1351     1349       -2     
  Misses        120      120              
  Partials       89       89

Impacted Files	Coverage Δ
parser.go	81.07% <100%> (-0.05%)	⬇️

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[easonlin404]

LGTM, but this changes I'm not sure does it work for programmatically value passing? I think we could add the test for it.

[ubogdan]

This change fix annoying {{.Host}} and {{.BasePath}} into json/yaml files. I have no clue what other tests you are suggesting to add.

The issue was introduced

commit 7b8e2c6e9410cb72361a377c8e2f0925201317cf 
Author: Bojan 
Date: 10/2/18 5:20 AM  feat: add mechanism to programatically set general api info (#220)

[ubogdan]

I've left some comments on issue itself. Anyway if you don't like it just refuse the PR.

[easonlin404]

It’s ok for me. I would check later and add the tests if necessary.

[easonlin404]

LGTM