addresses issue #134
Merge branch 'alpha' of github.com:thehogfather/pvsio-web into alpha

# By Paolo Masci
# Via Patrick Oladimeji (2) and Paolo Masci (1)
* 'alpha' of github.com:thehogfather/pvsio-web:
  updates widgets definitions of example projects (all button widgets now respond to click actions only)
  [Emulink] patch for opening emuchart files that include variables and constants definitions