Merge pull request cisco#3285 from GuangweiWang/public-release-2.1.1

change release note for openh264v2.1.1

Merge pull request cisco#3243 from ycqian/v2.1.0

update v2.1.0 ReleasNote to openh264v2.1.0 branch

Merge pull request cisco#3132 from aiszhang/public-release-update-ver…

…sion-2.0.0

update version to 2.0.0

Merge pull request cisco#2984 from GuangweiWang/public-release-update…

…-version1.8.0

add download URLs for openh264v1.8.0 binaries

Merge pull request cisco#2767 from ruil2/add_link1.7

add v1.7 release notes

Merge pull request cisco#2522 from HaiboZhu/Change_SharedLibVersion_v1.6

Update the SharedLibVersion to make the compatibilty

Merge pull request cisco#2174 from HaiboZhu/Bugfix_CHECK_SE_UPPER_con…

…ditions_v1.5

Fix the macro UPPER_CHECK conditions

Merge pull request cisco#1877 from ruil2/vui_base1.4

fix vui writting

Merge pull request cisco#1686 from HaiboZhu/Debug_v1_3_No_Deblocking_…

…when_TotalMB_equals_to_0

Force NO deblocking when no MB decoded in current slice

Merge pull request cisco#1655 from sijchen/docx

add release note for preparation of v1.3.0