Documentation problem of M.Environment

[rois286]

M.Environment documentation page at http://panacodalabs.github.io/The-M-Docs/#components_&_utilities/m_environment has the "getHeight" method twice, and the "getTotalSize" method is missing (though it's mentioned in the examples).

It looks like:

1. "getTotalHeight" is actually "getTotalSize"
2. The second "getHeight" method is actually "getTotalHeight"