v2.0.3

Bug fixes:

• #103 - reset tasks when pilot dies
• #74 - dataset submit failure message
• #73 - clear error and output files between tasks on a pilot

Enhancements:

• #98 - master task reset
• #76 - write ahead logging for SQLite
• #68 - task reset from website

Other:

• #102 - sort parameters in submit json
• #63 - remove references to unittest2