Add support for CentOS 7.6

Merge pull request #905 from rradjabi/kernelUpgradeFixF1

Kernel Upgrade Fix for F1

Several bug fixes

Completes the logic for checking UUID instead of XclbinId on F1 (#890)

* parse uuid on F1 instead of expecting xclbinid

* Get uuid from axlf for comparisson. Tested and passes on F1.

* Using uuid_compare, and making xclGetXclbinUuid() a const function.

* Fix comparisson to 0, and use uuid_is_null instead

AWS Bug Fixes

Scaling of multi-threaded, multiple-devices with KDS.

2018.3 Release

First release of 2018.3.
This release is in sync with official Vivado, IP and SDx release 2018.3 which is now live on the Xilinx Download Center.

AWS bug fixes.

1. Profiling fixes
2. cmake refactoring for component builds

Several fixes and full AWS merge

Merge pull request #466 from rradjabi/aws-2018_2-data-retention

AWS 2018.2 Data Retention

2018.2_XDF RC1

Merge pull request #422 from sarab96/2018.2_XDF

Updated XMA code merged from git enterprise