fix manellic eval bug and more tests

[dehann]

relates to:

• Ball/Metric Tree using NearestNeighbors.jl / Manifolds.jl / Distances.jl / CoordinateTransformations.jl #41

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f4bc666) 57.03% compared to head (675e7a4) 57.32%.
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #269      +/-   ##
==========================================
+ Coverage   57.03%   57.32%   +0.29%     
==========================================
  Files          19       19              
  Lines         931      935       +4     
==========================================
+ Hits          531      536       +5     
+ Misses        400      399       -1     

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