(bug) show infowindow when the geolocation failed
Merge pull request #38 from Neco-Murphy/bug/geolocation

(bug) show infowindow when the geolocation failed
Merge pull request #39 from gregory-nisbet/feat/test

(feat) SpecRunner and sample test
(bug) get rid of error: className
(bug) delete console.log
Merge pull request #40 from Neco-Murphy/bug/className

(bug) get rid of className is Null error
add elevation
Merge pull request #42 from sjsharp/feat/elevation

(feat)add elevation
(feat) show dificulty calculated by the elevation change
fix typo calcDifficulty
fix typo calcDifficulty (line148)
(doc) add build instructions
Merge pull request #44 from Neco-Murphy/feat/showDifficulty

(feat) show dificulty calculated by the elevation change
(doc) added build instructions
(doc) typo fix
Merge pull request #45 from gregory-nisbet/doc/readme-build-instructions

(doc) add build instructions