Help with jailbreaking and Cydia for iPhones, iPads, and iPod touches.

After adding some new icons to my theme earlier, and respringing to apply these settings, my device became stuck in a respring loop. I did a hard reset to get out of this, but afterwards it wouldn't boot, and no substrate won't work either. I then went into my device through SSH and removed all the packages manually, but it still wouldn't boot, even after removing mobilesubstrate.

I have a partial syslog viewed from in the iPhone Configuration Utility, but I cannot view the whole syslog as it freezes up the application. From the syslog, it appears that something is crashing SpringBoard just after it loads, and is then terminating itself almost instantly.

A screenshot of the syslog that I have:

Any help with this would be very much appreciated, as I do not want to restore to iOS 7 if I can help it at all.