Custom GCC freedom, Strict Aliasing,-Os, Flags

With this commit, you will be heavily modifying your build environment. What this
will do, is allow you the freedom of using any custom toolchain of your choice,
provided you follow two simple rules:

RULE #1: Both the androideabi and armeabi toolchain folders of your choice HAVE to
be named like the following:

for androideabi, the folder has to be prefixed with: arm-linux-androideabi-
and for arm-eabi, the folder has to be prefixed with: arm-eabi-

ex:

If you want to use GCC-4.8 as your toolchain of choice, both the androideabi and
armeabi folders have to look like this:

arm-linux-androideabi-4.8
arm-eabi-4.8

If you are using linaro in which both chains are in the same folder, you will need
to clone it twice or copy and rename one to the androideabi chain, and the other to
the arm-eabi chain.

RULE #2: The build is configured to build with GCC-4.9 (Saber) by default
so you will need to add the following lines to your Device's BoardConfig.mk in order
to initiate an alternate custom toolchain sequence. I simply add it to the very bottom
of the BoardConfig.mk like so:

TARGET_GCC_VERSION := 4.8

Keep in mind, that this simple number change you specify at the end will decide
which toolchain you will use. So if you would rather use a 4.6 change, just change the
number.

This commit also changes your global compiler flags to -Os. -Os is an option
that enables all -O1 and -O2 options and compiles for code size which in my experience
improves functionality in that you have less memory being used which make the rom
run smoother and consume less battery.

This commit also adds a few optimization flags that I've pre-selected for best
performance with minimal (if any) cost to memory and code size.

This commit also builds the entire rom using a Strict Aliasing set at the highest level
of -3 and set to error on every strict aliasing issue. Make sure that you have all the
proper strict aliasing/linaro commits needed! If you can't find them, they will either be
available to you on https://github.com/IAmTheOneTheyCallNeo or https://github.com/VigorCM

Contact me if you have any issues and I will help you when and if I can.

-Neo