PKP|PN 2.0.4-3 - OJS 3.3

This release is addressing several longstanding bugs, and also improves the error messages.
See the issues which were covered at the v2_0_4-3 milestone.

What's Changed

• #18 Add missing lockss state by @jonasraoni in #17
• #25 Drop PEAR/Archive_Tar requirement by @jonasraoni in #30
• #24 Updated staging server URL by @jonasraoni in #32
• #19 Allow the plugin URLs to be accessible for non-public journals by @jonasraoni in #29
• #24 Updated the BagItTools package to fix issues under Windows by @jonasraoni in #38
• #46 Fix bad method call by @jonasraoni in #48
• #43 fix invalid method call by @jonasraoni in #49
• #45 Properly notify the failure, to avoid depositing failed exports by @jonasraoni in #51
• #55 Fixed invalid method IssueDao::getIssueById() by @jonasraoni in #56
• #20 address missing error handling by @jonasraoni in #59
• #35 fix missing field by @jonasraoni in #53
• #64 implement missing method by @jonasraoni in #65
• #67 fix empty notifications by @jonasraoni in #70 and #71
• #68 fix journal cleanup by @jonasraoni in #74
• #61 improve resilience by @jonasraoni in #76
• #28 fix status handling by @jonasraoni in #82

Full Changelog: v2_0_4-2...v2_0_4-3