svn path=/main/trunk/; revision=2957
* Global updates and fixpackages performance optimizations.
* Tests show that file locking is now more reliable.
* A bash call stack is printed when an ebuild dies in ebuild.sh.
+* New rsync option handling by using a generic PORTAGE_RSYNC_EXTRA_OPTS variable
for other actions)
* Tools that call emerge should override the EMERGE_DEFAULT_OPTS environment
variable or use the emerge --ignore-default-opts option.
+* rsync option handling has been redesigned, instead of RSYNC_* variables
+ use PORTAGE_RSYNC_EXTRA_OPTS from now on.