beta 0.1.1.4

• refactor OpenGL, test relative codes
• optimize LRN
• fix doc link error

0.1.1.3

• fix benchmark script for older version adb
• add FAQ.md
• add environment requirement in Install.md
• add coeff in Eltwise Op
• fix bugs in strassen 1x1 data preparation
• add download failure process in get_model.sh

0.1.1.2

• fix register typo
• add input count in conv model
• add 5x5 winograd convolution for OpenCL
• edit condition to use half in OpenCL
• upgrade build.gradle