EntryElement text field is correctly position on iPad. Closes #1.

The issue is that the default width for a new UITableViewCell is 320,
so if the FlexibleLeftMargin flag is set the cell is resized on the
UITableView and the field is essentially shifted to the right as the
cell’s width is increased rather than expanding as the cell’s width is
increased. Of course, when a cell is de-queued the cell already has the
correct width of 768 (not 320) and therefore the field is correctly
positioned. Therefore, this issue should only affect iPad. I have only
tested on iPad not iPhone.
EntryElement UITextField adjusted Y alignment and font size. Closes #2.

Uses the UITableViewCell.TextLabel.Font for the UITextField in order to
create a consistent user interface. This aspect negates the need for a
-1 Y adjustment that was made so that the UITextField is correctly
aligned with the base line of the TextLabel.

Added a right margin between the entry field and the right of the cell.

May not work on iPhone.
Added DynamicSearchDelegate searching through elements not loaded. Closes #3.
Added EditingSource to enable row moving and deleting.

Sourced from samples project - only required for personal use and
probably should not be added to the main line.
Display a popover rather than a subview. Closes #4.