build.sh: Update ovs module name

Signed-off-by: Joe Stringer <joestringernz@gmail.com>
build.sh: Improve ubuntu version detection

Signed-off-by: Joe Stringer <joestringernz@gmail.com>
Fix integer serialisation on 32-bit systems

Signed-off-by: Joe Stringer <joestringernz@gmail.com>
TLV: Document int_to_bin

Signed-off-by: Joe Stringer <joestringernz@gmail.com>
Merge pull request #45 from joestringer/32bit

Bugfix & Document TLV
Merge pull request #44 from joestringer/scripts

build.sh script fixes
MongoDB replication implemented