Feature/ytaseo

add precision info

update seo code

update core_symbol

add Debug information for test

change core_symbol_name to yta

Merge 1.6.3

Bump version to 1.6.3

Consolidated Security Fixes for 1.6.3

Signature cpu usage - v1.6.x

- Fix small memory leak in net_plugin.
- Add additional deadline checks to transaction authorization.

Wrong tag/branch name

there is no tag or branch named "1.6.2", I think it should be "v1.6.2"?

Merge 1.6.2

Update version to 1.6.2

limit assert 1.6.x

Make sure python-devel is installed for amazon linux builds - 1.6.x

Don't unlink what we install via brew - 1.6.x

unlinking eveything we install makes no sense -- it means things like cmake aren't in the path any longer like the script expects. So don't do that any more. Unfortuately this old script requires that gettext be force linked. So implement that behavior explictly for now

add noninteractive option for build scripts - 1.6.x

Add buildkite step to gather brew files for automatic update