Here's a utility to enable/disable kernel modules or change some Raspberry Pi startup settings easily.
w1-gpio, SPI, I2C, pitft28-resistive
disable_overscan, hdmi_force_hotplug, hdmi_safe, start_x (camera), max_usb_current.
Note: it doesn't actually install any kernel modules. You should already have done that.
Please let me know what you think.