Fix typo in squid plugin

Commit acd4988 introduced a stray line into the squid plugin.
Remove it.
Add collection of grub configuration for UEFI systems

UEFI systems store the grub configuration at:

  /boot/efi/EFI/*/grub.conf [grub 1.x]

Add these paths to the respective modules.

Signed-off-by: Bryn M. Reeves <bmr@redhat.com>

Conflicts:

	sos/plugins/bootloader.py
	sos/plugins/initrd.py
Build fixes

Fix RPM builds using the git versions of sos.spec and Makefile.
[ctdb] Add plugin for Samba clustered databases

Backport of 253f7ae.

Signed-off-by: Bryn M. Reeves <bmr@redhat.com>