1) this patch replace all keymaps with PLA ones.
2) the patch also do the required change to the manual in order to match
code's changes.
3) it also add an alternative exit button (PLA_EXIT or PLA_CANCEL)
4) Also cut out the remote control related mapping as PLA handle remote controls
his own way so that we don't need them anymore
5) change scrollwheel mapping in order to have it controlling the value of selected field unstead of field selection
Change-Id: I023122d45a8337fad1e8ed8be12d4c928bdd1292
Reviewed-on: http://gerrit.rockbox.org/106
Reviewed-by: Thomas Martitz <kugel@rockbox.org>
Tested-by: Thomas Martitz <kugel@rockbox.org>
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