setup.py: Set the 'url' in setup.py to the OE BitBake page.

Removed the old berlios BitBake project page and inserted
the BitBake page from the OE project:
http://www.openembedded.org/wiki/BitBake

Signed-off-by: Bill Traynor <wmat@alphatroop.com>
bitbake: fetch2: Print the complete SRCREV variable name when INVALID

If a particular SRCREV (say for a particular branch) is missing, the
fetcher will currently just report an obtuse error about the "SRCREV"
being invalid. If there is more information is to be had (say from name,
i.e. branch, and pn) then display that as well.

The new error looks something like this:

ERROR: ExpansionError during parsing /home/dvhart/source/poky/meta/recipes-kernel/linux/linux-yocto_3.4.bb: Failure expanding variable do_patch: ExpansionError: Failure expanding variable SRCPV, expression was ${@bb.fetch2.get_srcrev(d)} which triggered exception FetchError: Fetcher failure for URL: 'git://otcgit.jf.intel.com/dvhart/linux-yocto-minnow-3.4.git;protocol=git;nocheckout=1;branch=standard/minnow,meta,emgd-1.14;name=machine,meta,emgd'. Please set SRCREV_emgd_pn-linux-yocto to a valid value

Note the variable listed as invalid is
"SRCREV_emgd_pn-linux-yocto", making it explicit what is wrong.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Cc: bitbake-devel@lists.openembedded.org
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
world-image: add extra target

* similar to world target, but collects all PACKAGES
* recipes marked with EXCLUDE_FROM_WORLD are excluded from world as well
  as world-image
* recipes marked with EXCLUDE_FROM_WORLD_IMAGE are excluded completely
  from world-image, sometimes you can build 2 recipes in same sysroot,
  but cannot install them in the same image
* PACKAGES listed in EXCLUDE_PACKAGES_FROM_WORLD_IMAGE are also
  excluded. You can remove e.g. ${PN}-dbg, but keep all other PACKAGES.

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>