ISODate display is incorrect for microseconds .001 - .099

[maihde]

Steps to reproduce:

1. Insert records into collection where ISODate has microseconds value between .001 - 0.099. For example:

insert({"date": ISODate("2016-06-04T23:25:00.023")})

1. View in RockMongo

Observed Behaviour:

• The value is displayed incorrectly, truncating the microseconds

"date": ISODate("2016-06-04T23:25:00.23Z")

The fix requires an change to use sprintf in the VarExporter.php file. A pull request will be provided with that includes the fix.

[stefanocudini]

Vote on this issue please #133