Handle inner functions (fixes #50)

[timholy]

No description provided.

[timholy]

I find it puzzling that Appveyor fails but Travis Windows succeeds, but let's just get rid of appveyor.

[codecov]

Codecov Report

Merging #56 into master will not change coverage.
The diff coverage is 0.00%.

@@          Coverage Diff           @@
##           master     #56   +/-   ##
======================================
  Coverage    0.00%   0.00%           
======================================
  Files           3       3           
  Lines         168     191   +23     
======================================
- Misses        168     191   +23     

Impacted Files	Coverage Δ
src/CodeTracking.jl	0.00% <0.00%> (ø)
src/utils.jl	0.00% <0.00%> (ø)
src/pkgfiles.jl	0.00% <0.00%> (ø)

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