Create log pages

This creates log pages which are linked to on the application and worker pages. Log pages slice a log from "offset" to "offset+lineLength," parameters which may be manually altered through the log page URL. The default for "offset" is 0 and the default for "lineLength" is 20. "Offset" may also be altered through the back/next buttons on the log page. The buttons are disabled if the log page has reached the beginning/end of a log.
![log page](https://f.cloud.github.com/assets/4754931/771174/9c6fc808-e8dd-11e2-9770-10186b5f12c5.png)
![application page](https://f.cloud.github.com/assets/4754931/771175/9e475a1a-e8dd-11e2-8e20-78137dd6a20d.png)
![worker page](https://f.cloud.github.com/assets/4754931/771179/9fcb383e-e8dd-11e2-927b-4d9dd9077c40.png)