Squashed commit of the following:

commit 31f6328381e5025cbfd7061ca4c1381a4fa1da2c
Author: Nicola Vigano <nicola.vigano@esrf.fr>
Date:   Wed Jan 4 20:02:35 2012 +0100

    EDF: pulled in pfWaitToRead, fixed, cleaned and renamed edf_wait_read

Signed-off-by: Nicola Vigano <nicola.vigano@esrf.fr>

commit fc987760a8314ce697d219a8d9af02f58b5d5557
Author: Nicola Vigano <nicola.vigano@esrf.fr>
Date:   Fri Dec 9 15:34:32 2011 +0100

    Better error detection in gtCopy (and added the possibility to skip errors)

Signed-off-by: Nicola Vigano <nicola.vigano@esrf.fr>

commit ef1a00638f67e97286c5b27fd6782d0cc3715461
Author: Nicola Vigano <nicola.vigano@esrf.fr>
Date:   Fri Dec 9 15:20:57 2011 +0100

    EDF: Imported and reworked/fixed ID19's files

    So we don't depend on them for EDF traffic, and we can have proper error handling.

Signed-off-by: Nicola Vigano <nicola.vigano@esrf.fr>

git-svn-id: https://svn.code.sf.net/p/dct/code/trunk@115 4c865b51-4357-4376-afb4-474e03ccb993