enable dynamic AU size in decoder
for cleaning .o and .d files generated by android demo
Update common.xcodeproj to build successfully
Merge pull request #917 from KentoMoriwaki/fix/ios-demo-build

Update common.xcodeproj to build successfully
and space to colon, modify bad note
Merge pull request #918 from syureyi/de7621

for cleaning .o and .d files generated by android demo
add iosutdemo
add iosutdemo
modify
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Remove unnecessary autogenerated stub iOS test projects

The actual unit tests will be hooked up in a separate project.
Add arm64 neon code for Satd.
Merge pull request #920 from mstorsjo/remove-ios-tests

Remove unnecessary autogenerated stub iOS test projects
resolve unit test warnings
remove a redundant file in encDemo project
    add pskip MD functions
Merge pull request #925 from lyao2/pskip_func_commit

add pskip MD functions
Merge pull request #923 from zhilwang/satd-arm64

Add arm64 neon code for Satd.
Merge pull request #916 from huili2/dynamic_dec_au_size

enable dynamic AU size in decoder
Merge pull request #924 from ruil2/expand_pic_1

resolve unit test warnings