Removed the file extension row from the browser context menu.
Removed FileItem.getFileExtension() and its imageSize property. Renamed 'Weight' to 'imageDimensions'. Also separated the size and dimensions RowLayouts into components so they can only be called when necessary and added checks to WindowFiles.qml to make sure that the file is supported before trying to assign it to the viewer (these both fix errors).
A wee fix to stop the browser from treating files as folders when doubleclicked.
Merge pull request #116 from JamesWrigley/develop

Improvements to the browser context menu