USE NPROCESSOR_CONF instaed of NPORCESSOR_ONLN

Add Bay Trail "Pentium N3520" atom

to determine the number of CPU. In ARM platform,
online CPU will increasing when there is more workload.
while configure cpu is the max number of CPU.

Add Braswell (extended model 4, model 12) N3150 as Nehalem

If OpenBLAS is built using add_subdirectory(OpenBlas) as part of another project
then the paths set by CMAKE_XXX_DIR are relative to the parent project
and not the OpenBLAS project.

When the number of process can all be
accommodated within the current node,
then use cores from the current node only.

Fix #786

I cannot reproduce SEGFAULT of lapack-test with default stack size
on ARM Linux.

* Use stack allocation
* Disable multi-threading
* Ref #727

Second part of "support Intel Avoton via Nehalem kernel"

Let openblas_get_num_threads return the number of active threads

illumos fixes

... not the number of allocated threads.

Close #760

Add lacking headers declarations when compiling for Android ARM7

Thank James K. Lowden for the patch.

Conflicts:
	driver/others/memory.c

Conflicts:
	driver/others/memory.c

http://users.atw.hu/instlatx64/

should fix issue #597

Disable CBLAS and LAPACK.

e.g.
make HOSTCC=gcc CC=arm-linux-androideabi-gcc NO_LAPACK=1 TARGET=ARMV7

In Android NDK, it uses armeabi-v7a-hard ABI.
TARGET_CFLAGS += -mhard-float -D_NDK_MATH_NO_SOFTFP=1
TARGET_LDFLAGS += -Wl,--no-warn-mismatch -lm_hard
For more information, please check hard-float example at
android_ndk/tests/device/hard-float/jni/.

Refactor such that you can build with ALLOC_SHM=0. HughTLB
implicity depends on ALLOC_SHM=1. This patch allows
building for Android NDK r10d.

Splite the matrix and reduction.

For gemv_t, directly use malloc to create the buffer.