fix typo
Merge pull request #487 from jasl/fix-typo

修改了一处错误拼写
disabled order button if event has started.
order button label change to [finished] if event has started.
change free order status to paid.
create a default ticket after event created.
remove join js.
fixed rspec error.
add money angular filter.
add event started? method.
Merge pull request #489 from saberma/saberma-enhancement/468-remove-sidebar-join-button

去掉右边栏的报名按钮
Disable sqlite3 test in Travis CI.

The test using sqlite3 is not stable recently. Disable it until we have
enough time to find out the cause.
Merge pull request #496 from doitian/disable-sqlite3-travis-test

Disable sqlite3 test in Travis CI.