Updated alert file URL to new location.

Updated parsing code to work with new alert file format.
Added support for parsing, displaying and filtering outbreak and invasion rewards.
Fixed some minor bugs with alerts improperly displaying time remaining if time was greater than 24 hours.
Removed legacy category filters, as they are now redundant due to new GUI improvements.
Changed helmet rewards to be one giant group instead of splitting them into multiple series.
Added new rewards to pre-defined reward list.
Updated some enum parsing functions to also parse by display name.
Fixed scroll speed when viewing a large list of rewards in the filter dialog.
Added readme file.
Updated program version to 1.1.2.