* Install directory defaults to scripts/../buildtools
e.g. --directory is set by default
This avoids the user having to type in their sudo password
to install in /opt/poky/<installer-version>
* Use "." rather than "source" for sourcing the environment script
as not all distros (e.g. Debian) have "source" by default.
* Add buildtools/ to .gitignore
* Fix typos in example usage (--install-version -> --installer-version)
[YOCTO #13832]
Signed-off-by: Tim Orling <timothy.t.orling@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
