Add allocator test file
Iterator Sample
Add a simple RB-Tree
Note for Inside The C++ Object Model

1.
http://www.roading.org/develop/cpp/%E3%80%8A%E6%B7%B1%E5%BA%A6%E6%8E%A2%E7%B4%A2c%E5%AF%B9%E8%B1%A1%E6%A8%A1%E5%9E%8B%E3%80%8B%E7%AC%94%E8%AE%B0%E6%B1%87%E6%80%BB.html
2. http://www.cnblogs.com/weiym/archive/2012/09/21/2697588.html
fixed a compile error
exception-safe code

1. fixed gcc compiling error.
2. add exception.
add CSAPP chapter 1
Merge branch 'master' into gtest

Conflicts:
	test/allocator.cpp
Add google_test sample
Version 0.2