replace default wp_ table name prefix by a variable

replaced wp_postmeta.meta_value by {$wpdb->postmeta}.meta_value
Admin UI / Try to better indicate options for Trashing/Erasing a syndicated post.
Internal / switch over to MyPHP utility class.
Admin UI / create an AJAXy Test Expression button to allow live testing of Custom Post Settings expressions.
MyPHP / utility sub-module, now with PHP 5.4 compatibility fix.
Merge pull request #5 from vobornik/patch-1

replace default wp_ table name prefix by a variable - props @vobornik, @pjf02536, and @alexdenvir for independent submissions
Dox / Version bump, update inline comments a little.
Diagnostics / Show read-out of WordPress version, PHP version (if available), Apache version (if available) in Diagnostics panel.
Security Fix / Allow FeedWordPress_File only to query http: or https: URLs. I am sorry if you were using gopher:// to retrieve your feeds, but a small whitelist follows WordPress's internal practice and is the easiest way here to avoid potential exploits against web hosting environment.
MyPHP / roll submodule into main supermodule to avoid install-related pain.
MyPHP / roll submodule into main supermodule to avoid install-related pain.
MyPHP / roll submodule into main supermodule to avoid install-related pain.
Merge branch 'master' of github.com:radgeek/feedwordpress
Dox / Version bump.
AdminPage / use function to automate production of admin.php URLs.
FeedWordPressAdminPage / Reduce admin.php cruft to a method call.
AdminPage / use function to automate production of admin.php URLs. / Typo fix
AdminPage / use function to automate production of admin.php URLs. / Typo fix
AdminPage / use function to automate production of admin.php URLs. / Sanitize special characters in URL, since we are likely to have an amp.
PHP 5.4 / The new JIT behavior for GLOBALS requires us to explicitly declare globals even if we were grabbing them through the array. Meh.