Create locale in pt_PT for backup plugin
*6582* Override getCurrentVersion() on Custom Block Plugin to prevent the upgrade and delete management verbs for a subsidiary plugin
Submodule update
*8888* Remove old travis config file
Submodule update
*8888* Earlier close of DB queries
Submodule update
*8888* Remove test server data
Update ru_RU in main \locale directory
Update of ru_RU + fix typos in en_US

Updated translation of ru_RU locale for plugins + fix some typos in
en_US locale
*8893* call parent getLocaleFieldNames from ArticleDAO
Merge pull request #282 from ppv1979/ojs-stable-2_4

Update of ru_RU locale + fix typos in en_US
Release prep for OJS 2.4.5
Add release notes for OJS 2.4.5
*8888* Remove HTML-based Selenium test framework
*8787* Publish initial issue and schedule intended submissions
*8864* Updating ToC fix.
*8741* fix due date after mailing an object
*8888* Rename constant
*8888* Add native export test