Fix Ubuntu 14.04 Touchpad Issues

touchpad_fix.sh

sudo apt-get install libevdev-dev

sudo aptitude purge xserver-xorg-input-synaptics

sudo aptitude build-dep xserver-xorg-input-synaptics

sudo git clone git://anongit.freedesktop.org/xorg/driver/xf86-input-synaptics
cd xf86-input-synaptics

wget -q -O - http://xps13-9333.appspot.com/root/0001-Don-t-use-finger-width-for-the-palm-detection.patch | git am

./autogen.sh --prefix=/usr
make
sudo make install

mkdir -p /etc/X11/xorg.conf.d/
sudo wget -q -O /etc/X11/xorg.conf.d/20-synaptics.conf http://xps13-9333.appspot.com/root/etc/X11/xorg.conf.d/20-synaptics.conf
synclient PalmMinZ=100

FORGET IT!

Much easier to use:
sudo synclient -l
sudo synclient PalmMinZ=100