Add a commit() to UpdateCheck to make sure dmd.lastVersionCheckDate gets updated

[jstevens]

We have quite a few installs of zenoss that are checking their version number very frequently, as much as once a minute in some cases. This might be because the sendEvent in UpdateCheck.check() (or something near it in the code) is throwing an exception and keeping the dmd.lastVersionCheckAttempt setting from being committed.

If it is not a manual check, ie if this is zenactions checking, then commit immediately after setting dmd.lastVersionCheckAttempt to make sure that gets stored and the version isn't checked for another day.

[jstevens]

(In [9330]) fixes #3213

• making sure dmd.lastVersionCheckAttempt gets committed when we do an update check.

[jstevens]

This was reviewed by ead when originally made.

[ian]

(In [9419]) * Refs #3213: Backported r9330 into the zenoss-2.2.x branch

[ecn]

cent5 32-bit native rpm build 24