fixup: Simplify_chained_comparaison
fixup: useless_parenthesis
fixup: unresolved_references
Add notes about specific release branches.
Remove trailing spaces
Add #streamOptimized to fix .ovf for VirtualBox 4.3.2
fixes #261
If specified, add Branch to build dir name
Allow specification of branch to install
Allow -b to specify install or test branch
Fix typo/minor error.
Add OperatingSystemSection to OVF template
should facilitate importing 64-bit image
adjust regex for finding mininet's links during cleanup

link names of the form "a-b-ethN" were previously interpreted
as "b-ethN". this change accepts link names with a dash, and
requires N to only contain digits.
don't crash when link is TCLink but without options

caused by optimized return in link.py#275 in TCIntf.config()
print error messages when making interfaces

without this, thereis no indication in Mininet that creating an
interface has failed. for example, this may happen when the interface
name is too long (longer than IFNAMSIZ, which is 16 chars).
Merge pull request #254 from sieben/unresolved_references

fixup: unresolved_references
Merge pull request #264 from adferguson/tc-no_opt-fix

don't crash when link is TCLink but without options
userspace switch can be reached on unix port by dpctl
Remove GRUB_TERMINAL=serial from /etc/default/grub

This is added because we install Ubuntu from a serial console.
Fixes #265
Merge pull request #269 from adferguson/userspace_unix

userspace switch can be reached on unix port by dpctl
Merge pull request #266 from adferguson/if_namesize

print error messages when making interfaces