Create locale in pt_PT for backup plugin
*8190* fix URL encoding for DOIs
fix validate method
*8648* Crossref automatic deposit: initial re-commit and cleanup
*6582* Override getCurrentVersion() on Custom Block Plugin to prevent the upgrade and delete management verbs for a subsidiary plugin
Merge branch 'ojs-stable-2_4' of https://github.com/pkp/ojs into uls-install

Conflicts:
	lib/pkp
*8888* Move regression tests to functional; cleanup
*8888* Submodule update ##asmecher/8888-fix##
Merge pull request #275 from asmecher/8888-fix

*8888* Adapt regression tests into functional tests
Merge pull request #234 from bozana/doiEncoding

*8190* fix URL encoding for DOIs
*8888* Remove old files tarball
*8888* Make search test code more flexible
*8791* Add tests for starts-with searches
Submodule update
Submodule update
*8888* Fix application plugin tests
*8648* CrossRef automatic deposit and XML updates
Submodule update
*8888* Remove old travis config file
Submodule update