VR Tourviewer 0.1 build 27

[Ruud van Reenen]

VR Tourviewer version 0.1 build 27 can be downloaded here.

Changelog:
- added: support for monoscopic tours
- added: supports a single local tour in a folder 'VRTourviewer' (case sensitive) on sdcard. Needs a pano.xml file in the root of that folder
- changed: menu layout
- changed: some code optimization
- changed: detection of a stereoscopic tour is now based on a 'stereo' tag in User Data in Pano2VR before outputting
- fixed: sometimes hotspots were unresponsive
- fixed: some code optimization