5.2.0 Release Post: Update (#513)
5.2.0 Release Post: Update (#513)

* added link to 5.2.0 download
* added link to 5.2.0 release notes
tst-lsavoie/earthenterprise,google/earthenterprise,google/earthenterprise,tst-ccamp/earthenterprise,google/earthenterprise,tst-ppenev/earthenterprise,tst-ppenev/earthenterprise,tst-ccamp/earthenterprise,tst-lsavoie/earthenterprise,tst-ccamp/earthenterprise,tst-eclamar/earthenterprise,tst-ccamp/earthenterprise,tst-ccamp/earthenterprise,tst-lsavoie/earthenterprise,tst-lsavoie/earthenterprise,tst-mswartz/earthenterprise,tst-eclamar/earthenterprise,tst-lsavoie/earthenterprise,google/earthenterprise,tst-ppenev/earthenterprise,google/earthenterprise,tst-eclamar/earthenterprise,tst-eclamar/earthenterprise,tst-lsavoie/earthenterprise,google/earthenterprise,tst-ppenev/earthenterprise,tst-lsavoie/earthenterprise,google/earthenterprise,tst-mswartz/earthenterprise,tst-eclamar/earthenterprise,tst-mswartz/earthenterprise,tst-ppenev/earthenterprise,tst-eclamar/earthenterprise,tst-lsavoie/earthenterprise,tst-mswartz/earthenterprise,tst-ccamp/earthenterprise,tst-eclamar/earthenterprise,tst-ppenev/earthenterprise,tst-ppenev/earthenterprise,tst-mswartz/earthenterprise,tst-ppenev/earthenterprise,tst-mswartz/earthenterprise,tst-mswartz/earthenterprise,tst-ccamp/earthenterprise,tst-eclamar/earthenterprise,google/earthenterprise,tst-mswartz/earthenterprise,tst-ccamp/earthenterprise,tst-ccamp/earthenterprise,tst-ppenev/earthenterprise,tst-eclamar/earthenterprise