Move to 1.7

[FredericWantiez]

Move to 1.7 following the discussion here

[codecov]

Codecov Report

Merging #57 (18a12a6) into master (75cf3f8) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #57   +/-   ##
=======================================
  Coverage   64.69%   64.69%           
=======================================
  Files           7        7           
  Lines         507      507           
=======================================
  Hits          328      328           
  Misses        179      179           

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[coveralls]

Pull Request Test Coverage Report for Build 2392958617

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 64.694%

---

Totals
Change from base Build 2386891635:	0.0%
Covered Lines:	328
Relevant Lines:	507

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 2392958617

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 64.694%

---

Totals
Change from base Build 2386891635:	0.0%
Covered Lines:	328
Relevant Lines:	507

---

💛 - Coveralls