alright
sign_in is revised
users selfintro etc added
driver's form revised
drivers#show changed a little
on the header and purpose added
Merge pull request #27 from matcho3/facebook3

made facebooklogin change a bit
conflict is fixed
facebook log_in is complete
Merge pull request #28 from matcho3/facebook

Facebook
Merge branch 'master' of https://github.com/matcho3/HIKERS into driver
conflict is fixed
document is added
around user is changed
Merge pull request #29 from matcho3/trip

Trip
Merge pull request #30 from matcho3/driver

Driver
fixed anyways
fixed