Merge pull request #47 from feministy/series

series view on sign up page
email from name so it is not "liza", change redirect for signing up
Merge pull request #48 from feministy/email_from

email from name so it is not "liza", change redirect for signing up
remove admin check
Merge pull request #49 from feministy/ta#show

remove admin check from teaching_assistant#show page
ignore ruby version
exclude Date.today instead of Date.tomorrow
Merge pull request #64 from feministy/ta_confirmation_email

TA confirmation emails