Although it isn't propogated up to the UI, it'll end up in Mahara's error log, which will help debugging.

The class of errors this catches is mainly to do with having invalid ssl keys on the remote host.
Signed-off-by: Nigel McNie <nigel@catalyst.net.nz>

(cherry picked from commit dc3a11e8)

Don't ignore exceptions without error code 704/404 when bootstrapping peers. Thanks to Dan Poltawski

Previously, the code was only making sure whitespace was removed, but other parts of Mahara depend on this field having only alphabetical characters.

Now the code makes sure only alphabetical characters are in the string, and will cycle through the letters a - z attempting to generate a new institution name if the one generated is already taken.

If someone needs more than 26 peers all with the same name... well tough :)

Signed-off-by: Andrew McMillan

code