Fall back to non-translated strings in _deprecated_*() if the translation function doesn't exist. This may be the case in sunrise, for example.

Fixes #24778 props SergeyBiryukov.


git-svn-id: https://core.svn.wordpress.org/trunk@24723 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Ensure _deprecated_function() exists before calling it. wpdb currently does not have a full functions.php dependency, and this can break external inclusions. see #24774.



git-svn-id: https://core.svn.wordpress.org/trunk@24724 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Fix a strict standards error in the plugin search when search for an already installed plugin.

Fixes #24747 props SergeyBiryukov.


git-svn-id: https://core.svn.wordpress.org/trunk@24725 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Remove stray character.



git-svn-id: https://core.svn.wordpress.org/trunk@24726 1a063a9b-81f0-0310-95a4-ce76da25c4cd