Created an environment bootstrap script for OS X.

Also added a homebrew formula for gcc-4.6, required
to build a working emulator in Lion.
Merge pull request #27 from marshall/bootstrap_mac

Created an environment bootstrap script for OS X.
add otoro to the list of builds in config.sh
Update master
Merge pull request #34 from davidflanagan/master

update build instructions to note that a full build.sh is necessary before build.sh gecko
Switch Nexus S to device directory blob downloader
Revert "Update master"

This reverts commit bb85677c8065ba53b60a266d2598f3ea4ad0c079.
Use download-blobs.sh on galaxy nexus
Allow overrides for the default --emulator arg in test.sh
Merge pull request #36 from marshall/marionette_args

Allow overrides for the default --emulator arg in test.sh
Adding instructions to add udev permissions
typo.
Device serials for adb/fastboot can be provided with "-s <serial>" now.

Also fixed timezone setting for Mac OS X
Merge pull request #43 from benfrancis/master

Adding instructions to add udev permissions
Merge pull request #44 from marshall/flash_serial_and_tz

Device serials for adb/fastboot can be provided with "-s <serial>" now.
fix issue 25 by calling install-media-samples in flash.sh
Merge pull request #47 from jhford/issue25

fix issue 25 by calling install-media-samples in flash.sh
Fix flash.sh arg handling regression
Fix gecko flashing rule
create a fake otoro m4-demo