Timesheet 1.0.2

# Change table character collation set to utf8mb4_unicode_ci as used by J3.5 RC (Beta 2 used utf8mb4_general_ci).
+ Add username change to system plugin for sheet table.
- Remove username foreign keys on user and sheet table.
~ Correct a few strings.
+ Add Live Update view.

Timesheet 1.0.1

+ Add system plugin to handle user changes in Joomla.
# Correct the JedChecker PH1 and PH2 errors ready for JED submission.
# Correct problem when deleting a timesheet user.
+ Add additional processing when removing user approval privilege.
- Remove a few redundant files.
~ Change seterror calls to throw exceptions.
# Correct minor errors preventing back end lists sorting upon all fields.
# Correct front end directional sorting of timesheets.

Timesheet 1.0.0

+ Initial Release