20131109
 merge c6e53f5875d3198f69dcf69d4e0bcd285b26639f commit from iamroot-arm10b-linux
 2013/11/09 스터디 주석 보완
 merge e9960d4416d2301d1aa9f5824beb3dfa913ff4ab commit from iamroot-arm10b-linux
 스터디 주석 간단 추가
 merge f191104039803d3d0399d4ae887ac938bf7b77c4 commit from iamroot-arm10b-linux
 2013/11/16 스터디
 merge 78fbd8f9b340343fbadbbb5b6c11256c136dd8e9 commit from iamroot-arm10b-linux