Add instructions to build on Ubuntu
miner.php allow links for rig buttons in tables and allow using the 4th IP octet if no rig name - default disabled for both
miner.php - define a default rigport (that can be changed) and don't require a port number in the rigs array
Merge pull request #548 from kanoi/master

miner.php auto naming and size reduction for a large number of rigs
Add driver for cointerra devices.
Merge branch 'master' of github.com:ckolivas/cgminer
bab - disable chips that return only bad results
Reuse the cgpu->temp entry for max temperature in hfa driver.
Store the cointerra maximum temperature in the cgpu struct as an exponentially changing value based on the maximum temperature.
Reuse the cgpu temp entry for avalon and bitfury devices, changing avalon to a damped value.
Add a [U]SB menu item, initially with just statistics per device, adding device number to the device status window display.
Add enable and disable USB device functions to the menu.
Add USB Unplug option to USB management device management menu.
Add warning for attempting to unplug a usb device that is already removed.
Add a usb_reset by cgpu function to usbutils.
Add an option to send a USB reset via the USB menu.
Add an option to the USB menu to list all known devices.
Add a mechanism to blacklist a usb device from its cgpu.
Add blacklisting as an option to the USB menu.
Update various copyright dates