[Building Sakai] Checksum errors with maven 2.2.1

[David Horwitz]

>> I agree, but this would require someone to either do some work into
>> figuring out where/what the problem is and how we can fix it. And for
>> the short term this is not going to be entirely me. ;) And it didn't
>> (from the ticket) appear to be anyone else in the past or recently.
>> For our released artifacts for sure it should be completely strict,
>> and that checksum ignore shouldn't be in there. I'm not even sure why
>> it's verifying/downloading snapshot artifacts during a full build
>> anyway for the sakai tools.
>

oops missed something - snapshots are checked for updates once a day by 
default. It seems to do this by getting the pom to look for updates, I 
think missing/incorrect checksums make this worse, in that it checks 
more often and then tries to download it a second time ...

D