Merge pull request #13 from rock-core/make_aup_in_root_equivalent_of_aup_all

bin: make running aup in the autoproj root the equivalent of aup --all
Merge pull request #12 from rock-core/tune_github_access

Tune github access
Merge pull request #14 from rock-core/restrict_osdep_overriding_warning_to_current_os

osdep: warn about osdep overriding each other only for this specific OS
Merge remote-tracking branch 'origin/stable' into stable
bootstrap: fix error reporting if the root is not valid

Autoproj.error requires a message argument
bootstrap: fix exception raised in validate_autoproj_current_root

The backtrace was previously displayed. This makes sure that only the
error message is
bootstrap: fix invalid setting of Autoproj.osdeps
osdeps: fix override-check in OSDependencies#merge()

The current code was wrongly injecting 'h' which is a package name
instead of osdep_h which is the hash being built. It would trigger
only if an osdep is overriden, which uses both a OS package and an
os-independent package.
released 1.12.4
Merge branch 'stable'