Added the following features/imporovements suggested by the community:

Added the following features/imporovements suggested by the community:

 * Sort history by date descending.
 * Add revert button to history.
 * Search after pause.
 * Dynamically adjust amount of time message is shown by its length.
 * Fix a bug about things not being shown in history after delete.
 * Fix a problem with user not being shown change if they make a change in a
   context that isn't currently shown.
 * Do i18n on everything.

Signed-off-by: Joseph Lewis <joehms22@gmail.com>
Signed-off-by: Thomas Berezansky <tsbere@mvlc.org>
Signed-off-by: Jason Etheridge <jason@esilibrary.com>