* 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.
* Add configure option --bootstrap which allows specifying the
haikuporter and HaikuPorts repository paths.
* Add rules for supporting a second repository type. The
PackageRepository rule is now private and RemotePackageRepository is
used for remote repositories. The new BootstrapPackageRepository rule
is for defining a bootstrap repository (there will probably be only
the HaikuPorts cross repository) whose packages can be built as needed
via haikuporter.
* Rename DownloadPackage to FetchPackage.
* Define repository HaikuPortsCross.
* HaikuCrossDevel package(s): There are now two sets of packages: A
"stage1" set with the same content as before and a final set
additionally containing the libraries libbe, libnetwork, libpackage.
Those are needed for building the libsolv bootstrap package while for
building them we need other bootstrap packages (ICU, libz).
This is basically all that's required to build a bootstrap Haiku
completely from sources, with a few caveats:
* There's no ICU bootstrap recipe yet (so one has to cheat and use the
prebuilt package ATM).
* Probably doesn't work on Haiku yet (tested on Linux only).
* A 32 bit environment must be used (otherwise building the gcc 2
bootstrap package fails).
* Building with multiple jobs doesn't work yet, since haikuporter uses
common directories for building different packages and there's no
explicit serialization yet.
* Haven't tested the resulting image save for booting it. So it probably
needs a bit more work before it can actually build the final
HaikuPorts packages.
