Update build documentation

Add note for using root shell
Add example for populate local nexus
Use absolute path in package.py script
Remove Appendix
Add clone oom with all submodules
Fix example for pulling images in list

Signed-off-by: Denis Kasanic <d.kasanic@partner.samsung.com>
Change-Id: I8859ba42420d351ce12347cd63bf11f95a4b528d
Issue-ID: OOM-2158
Issue-ID: OOM-2160
1 file changed