Naoya Yoshizawa

For convenience.

check all pluggables is initialized

1

Maybe fix https://github.com/rekabhq/background_locator/issues/264 Sometimes it seems that locationUpdated is called before initCallback is called and initCallback is not called. In my environment, with this fix, initCallback is now called. Thanks.

Added LICENSE file. Thanks.

resolve #20

godoc can't generate unexported receiver methods.