Bake 2.1.1

This version includes the following new features:

• No new features

This version contains the following improvements:

• Add --strict and --optimize command line options
• Fix compiler warnings in bake.util when using strict compiler flags
• Pass bake environment and config to child processes
• Don't fail setup when copying bake script to /usr/local fails

This version contains the following bugfixes:

• Fix compiler errors on Android where code was treating va_list as scalar
• Fixed discovery bug where an rbtree was modified while it was being iterated
• Fixed crash when specifying an invalid path on the command line
• Fixed crash when specifying a URL to a non-bake git repository
• Fix detection of ARM architectures in ut_os_match