* IsPackageAvailable, FetchPackage: Add flags parameter. The only
flag supported ATM is nameResolved, indicating that the specified
package name does not need to be resolved with respect to a secondary
architecture anymore.
* Add build profile action "build-package-list". As an argument the
file to which the list of all packages needed for the image is
written. The rule BuildHaikuImagePackageList implements the action.
* BuildBootstrapRepositoryConfig: Does now require the variable
HAIKU_REPOSITORY_TREE_PATH to be set on the config file target instead
of hard-coding the path. Allows reuse of the actions.
* Add rules BuildHaikuPortsSourcePackageDirectory and
BuildHaikuPortsRepositoryConfig. The former builds all HaikuPorts
source packages needed to build the packages for an alpha image. The
latter generates a haikuports.conf file for use on the bootstrap
Haiku.
* HaikuImageBootstrap: Add directory /boot/home/haikuports which
contains a subdirectory with the source packages and a
haikuports.conf.