submit: one minute grace time before the hard deadline

Signed-off-by: Lucian Cojocar <cojocar@gmail.com>
vmchekcer: XXX: translate some messages to english

Hardcoded value (en).

Signed-off-by: Lucian Cojocar <cojocar@gmail.com>
gwt: update login form comms

Signed-off-by: Lucian Cojocar <cojocar@gmail.com>
gwt: XXX: hide language selection box
gwt: general results->challenges

Signed-off-by: Lucian Cojocar <cojocar@gmail.com>
gwt: update details for uploading archive

Signed-off-by: Lucian Cojocar <cojocar@gmail.com>
gwt: hide general table with results

Signed-off-by: Lucian Cojocar <cojocar@gmail.com>