email_bug_info_to_one_user() is not using email_build_subject() function
add hook EVENT_DISPLAY_EMAIL_BUILD_SUBJECT for email subject
Issue #15496: wrong variable name in move_attachments.php
Simplify code, align to guidelines
Add plugin event for e-mail subject customization

New event: EVENT_DISPLAY_EMAIL_BUILD_SUBJECT

Fixes #15648
Localisation updates from http://translatewiki.net.
Expand SOAP API documentation

Fixes #14301: Add SOAP API documentation in the administration guide
Fix #15775: Wrong reporter when copying an issue