Made moveto* votes always show player ID and name, 2 other minor voting related fixes

Changes:

• moveto* votes: always show both player id and name in the vote panel since players are hardly identifiable without showing their names
• fraglimit vote: reduce maximum votable frag limit
• movetospec command: make it work even if the player is already spectating/observing but still in game (CA, Survival, LMS)

Implementation details:

• moveto* vote command code is similar to the kick* one
• fraglimit vote command code is similar to the timelimit one