Added message when event doesn't have any speakers and bio is clicked

/src/org/osuosl/ocw/Schedule.java: When an event has no speakers i.e. registration, lunch, etc then a "Doesn't apply" message is displayed when the bio button is clicked.
When bio hasn't been downloaded yet and there is no internet connection then a message is shown

/src/org/osuosl/ocw/Schedule.java: If you open an already downloaded event but try to view the bio that hasn't been downloaded yet and there is no internet connection a message saying so and to try again with internet is displayed.
Added TODO remove hardcoded strings

/src/org/osuosl/ocw/Schedule.java: Added reminder to remove hard coded strings.
Merge pull request #2 from markholland/enhancement-14181

Enhancement 14181
Toast message when bio not available

/src/org/osuosl/ocw/Schedule.java: A toast message when the event doesn't have a bio or the bio hasn't been downloaded. In this case the bio view isn't shown and it stays on the description view. Deleted unused methods from enhancement-14181
Merge pull request #3 from markholland/enhancement-14187

Toast message when bio not available
New .apk after merging enhancement-14187

/ocw-android.apk: When no bio is loaded or the event has no speakers an adequate toast message is displayed.
Merge branch 'development' of https://github.com/markholland/ocw-android into development
Added JSON examples to git
ArrayList of conference days created

/src/org/osuosl/ocw/Schedule.java: As events are pulled from the JSON their dates are added without repetition to a globally declared ArrayList. The method now() uses this ArrayList to determine if the current times before or after the conference, in either of these cases the view is set to the first day of the conference. This method already existed I just simply refactored it to use the ArrayList.