Golint 2

[jtsaito]

This PR replaces #32.

This PR makes the repo pass golint and adds linting to the Travis config.

Comments have been added or their style fixed. A few variables have been renamed.

[codecov-io]

Codecov Report

Merging #33 into master will increase coverage by 0.09%.
The diff coverage is 88.88%.

@@            Coverage Diff             @@
##           master      #33      +/-   ##
==========================================
+ Coverage   71.84%   71.93%   +0.09%     
==========================================
  Files          19       19              
  Lines         760      759       -1     
==========================================
  Hits          546      546              
+ Misses        180      179       -1     
  Partials       34       34

Impacted Files	Coverage Δ
search.go	100% <ø> (ø)	⬆️
list-duration.go	83.33% <ø> (ø)	⬆️
arguments.go	100% <ø> (ø)	⬆️
label.go	100% <ø> (ø)	⬆️
webhook.go	41.46% <ø> (ø)	⬆️
list.go	100% <ø> (ø)	⬆️
member.go	100% <ø> (ø)	⬆️
list-duration-sort.go	100% <ø> (ø)	⬆️
token.go	100% <ø> (ø)	⬆️
action.go	94.91% <ø> (ø)	⬆️
... and 9 more

---

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[jtsaito]

golint is no longer go-gettable for old go versions (1.7, 1.8). I added a workaround that ignores linting for these versions but lints for other versions of go.

[adlio]

Much appreciated. There are a few API breaking changes in here (mostly due to not following conventions in naming of Url, etc). I found minimal impact to other code of mine that depends on this package, so I'm going to go ahead and merge.

[jtsaito]

@adlio You are right, I'm sorry I forgot to highlight the changed attribute names. Thanks for taking time to review and merge this!