Merge pull request #87 from moloyc/devR2.0

expand access port interfaces for ND only, as it cannot apply profile/brownfield
Merge pull request #88 from moloyc/devR2.0

fixing newline characters to unix format, nothing to review ...
Merge pull request #89 from moloyc/devR2.0

update readme with logo and license
fix for 1049589 and 1049591
update db more efficiently
Merge pull request #91 from yunli2004/devR2.0

fix for 1049589 and 1049591
initial code for ex4300, minor fix for ipv4 address loop