sota: Present the OpenDaylight project.

Signed-off-by: Alexandru Copot <alex.mihai.c@gmail.com>
architecture: add missing "Close" step

Signed-off-by: Alexandru Copot <alex.mihai.c@gmail.com>
implementation: describe preparations for OpenFlow 1.4

Also add subsections for flow-mod and port-mod messages.
intro: add section about linux software switch.

Signed-off-by: Alexandru Copot <alex.mihai.c@gmail.com>
appendix: add autoconf test example

Signed-off-by: Alexandru Copot <alex.mihai.c@gmail.com>
test-eval: add plot with performance comparison.

The plot requires the pgfplots Latex package.

Signed-off-by: Alexandru Copot <alex.mihai.c@gmail.com>
img: update bundle state machine with error transitions.

Signed-off-by: Alexandru Copot <alex.mihai.c@gmail.com>