Added MLB and NBA salaries for 4/10/2014.
Added MLB and NBA salaries for 4/11, 4/12, 4/13
Added MLB and NBA salaries for 4/14/2014.
Added MLB and NBA salaries for 4/15/2014.
Added MLB and NBA salaries

4/16/2014 and 4/17/2014
Added MLB and NBA salaries

4/18/2014 and 4/19/2014
Added MLB and NBA salaries for 4/20/2014
Added MLB and NBA salaries for 4/21/2014
Added MLB and NBA salaries for 4/22/2014
Fixed regexes to account for underscores.
Various fixes for live data.

- Added option for T to result regex.
- Date field is stored as a datetime instead of struct.
- Handling exception if Num Pitches isn’t a link.
Added constant for STATS.
Added check for season being before 1900.

Seasons in the 1800s break the date struct-to-string conversion.
Separated players into active and retired.

This makes for easier processing when we’re only interested in active
players.
Added fallbacks when <a> tags don't exist
Added fixes for bad html
Added MLB and NBA salaries for 4/23/2014
Added MLB and NBA salaries for 4/24/2014
Added MLB and NBA salaries for 4/25/2014.
Added MLB and NBA salaries for 4/27/2014