On precise, give the option to build OVS from source

In Ubuntu 12.04 precise, the latest version of OVS available
is 1.4.0. 1.9.x is currently LTS and 1.10.2 is the newest "stable"
version.

1.10 contains significant performance enhancements and flow management
allowing OVS to scale and handle much larger workloads.

This allows you to choose to build and install a newer version of OVS
from debs (built from git sources) on precise to take advantage of
these performance and stability enhancements.

Change-Id: Ib5edd6f13867ba1f4fe09e0428436cac6b4edad8
On precise, give the option to build OVS from source

In Ubuntu 12.04 precise, the latest version of OVS available
is 1.4.0. 1.9.x is currently LTS and 1.10.2 is the newest "stable"
version.

1.10 contains significant performance enhancements and flow management
allowing OVS to scale and handle much larger workloads.

This allows you to choose to build and install a newer version of OVS
from debs (built from git sources) on precise to take advantage of
these performance and stability enhancements.

Change-Id: Ib5edd6f13867ba1f4fe09e0428436cac6b4edad8
Testing setting source to true

Change-Id: Ic12adb4fa2ae9f37b489d7a252c3a0f2e1ef2a46
Testing building options

Change-Id: I243915c6dc4c619143b77d220e5a0667e01b2a0b
Added version and arch flags

Change-Id: Ib7d4c583e68761a8e607b6f58f2b50dd99f792bb
Few more logic changes

Change-Id: I2edc0341fd7007db9f4281a53dca12ad00595034
Updated ovs download filenames to make more sense

Change-Id: Ib2f162521156dbf692afe263a8f518c2b8a73230
Fix built deb path

Change-Id: I0c9b53e11ebd366a85de64b7a3609cb798a9629f
Fix logic so source and repo packages won't both be installed

Change-Id: Ie8c7b574ed94d350c846c5046841cd6518be45c2
Merge branch 'build_ovs_source' of github.com:kevinbringard/cookbook-openstack-network into build_ovs_source