Use files instead of sysctl to set limits

fixes #180

D'oh!  Next time test presence _and_ absense of an added env var.

OTOH, when people notice this quickly, it means they're using install.sh :-)

Developer dependencies are ~1GB

Right now after installing mininet using util/install.sh there is a problem when try to generate doc:
	make doc
	doxygen doc/doxygen.cfg
	make: doxygen: Command not found
	make: *** [doc] Error 127
Adding doxygen, doxypy and texlive-fonts-recommended packages to fix the problem.

Fixes #94

If NBEEURL is defined when running install.sh, use that location.

Enables use of a local mirror for netbee download.

Thanks to David Erickson for the code.

The previous version (12-05-16) does not compile on Ubuntu 12.10.

Also use a local variable to reduce duplication.

Conflicts:

	util/install.sh

closes #100

should fix #128

For local display, allow local root access
For remote display, tunnel with socat/mnexec
This should enable *wireshark in hosts* and fix #119

Signed-off-by: Bob Lantz <rlantz@cs.stanford.edu>

closes #85

Since oftest removed tools/munger directory, install.sh fails as follows
> mininet/util/install.sh: line 399: cd: tools/mnuger: No such file or directory

oftest change set
> commit be8503a69d609d0aee844a91f3f5d66f4e2666c7
> Author: Rich Lane <rlane@bigswitch.com>
> Date:   Tue Mar 12 10:16:33 2013 -0700
>
>     remove pylibopenflow tools

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>

Reported-by: Julius Bachnick

https://mailman.stanford.edu/pipermail/mininet-discuss/2012-November/001349.html

These total to only ~200KB.

This repo has moved to git://github.com/floodlight/oftest.git

'make install' calls help2man, so apt-get install it beforehand.

Update to reflect new NOX classic repo on github and default branch.

Update to reflect new NOX classic repo on github and default branch.

Fixes Issue 41: https://github.com/mininet/mininet/issues/41

Reported-by: sublinhado on GitHub