Fixing hints glitches (#281)
Fixing hints glitches (#281)

* Fixes #255
* Hints are automatically unlocked once the CTF is finished
* Don't provide hints if CTF hasn't started

isislab/CTFd,LosFuzzys/CTFd,CTFd/CTFd,CTFd/CTFd,LosFuzzys/CTFd,isislab/CTFd,ajvpot/CTFd,LosFuzzys/CTFd,LosFuzzys/CTFd,CTFd/CTFd,ajvpot/CTFd,isislab/CTFd,CTFd/CTFd,ajvpot/CTFd,ajvpot/CTFd,isislab/CTFd