install_perl_libs.pl:
-added to @LINUX_PACKAGES
  -perl-Frontier-RPC
  -perl-Frontier-RPC-Client
  -perl-LWP-Protocol-https
  -perl-Mo
  -perl-Object-InsideOut
  -perl-Scalar-List-Utils
  -perl-Expect
-added to @PERL_MODULES
  -Crypt::CBC
  -IO::String
  -Text::CSV_XS
-removed from @PERL_MODULES
  -DBI
  -Mail::Mailer
  -RPC::XML
  -Term::ANSIColor
  -Time::HiRes
  -URI
  -YAML

INSTALLATION:
-updated 2.5 to 2.5.1
-small changes to initial paragraph
-removed Apache HTTP v1.3 as supported web server version
-added php-gettext as required php module
-added DBD::MySQL as required perl module
-added Net::Ping::External as required perl module

README:
-updated 2.5 to 2.5.1
-removed Apache HTTP v1.3 as supported web server version
-removed RHEL 6.8 as supported OS version
-updated supported CentOS version from 7.3 to 7.6.1810
-added DBD::MySQL and Net::Ping::External to required perl modules
-removed Windows XP and Windows Server 2003 from management node conditional system requirements
-removed Jabber notifications from management node conditional system requirements
-updated Dojo Toolkit version reference from 1.6.2 to 1.6.5

RELEASE_NOTES:
-updated 2.5 to 2.5.1
-updated list of notworthy changes
-added note about emailing security bugs rather than reporting via JIRA

UPGRADE:
-updated 2.4.2 to 2.5
-updated 2.5 to 2.5.1
-small changes to initial paragraph
-changed step 9 for web code to add SSLOFFLOAD to conf.php instead of removing MAXVMLIMIT
-removed step to update secrets.php
5 files changed