Merge pull request #18 from pdpiech/master

Fix ReceiveActivity intent category
Merge pull request #19 from pdpiech/master

Enforce single instance of MainActivity in any Task
Parse out first/last name and original file name

Parses out first name, last name, and original filename from the file
received in ReceiveActivity.

Question: Do we want to store the file with original filename, or with
the first/last name?
Actually call the function

Actually call the function I wrote in the prior commit :S
Merge pull request #20 from pdpiech/master

Add else case to handleViewIntent for other schemes