Merge pull request #139 from reinos/master

Bugfix where the elevation got broken
Fix bug in getElevations / Rename fitBounds to fitLatLngBounds
add unitSystem property to drawRoute
Merge pull request #155 from mutley/master

Added support for unitSystem in drawRoute
Allow create context menus for markers
Initial testing suite
Update tests
Rename MapHelper to MapSpec and create Marker tests
Update tests
Update tests and refactor event listeners
Tests for layers and routes
Fix double event firing
Add tests for overlays
Merge pull request #162 from HPNeo/testing

Add a test suite
Update version -> 0.2.28
New methods: removePolyline and removePolygon. Tests for Styled MapTypes
New feature: StreetView Panoramas
GMaps.on/GMaps.off for event listeners (native and custom)
GMaps.fire for fire/trigger events defined with GMaps.on
Edited the buildContextMenuHTML, so it does work even if the map element is nested inside many relative/absolute positioned elements