multi map add test, then backed by List
Get not put
as per RP comments
as per RP comments
fixes randomly failing test
use method removeBackup in backup operations
add javadoc
review improvement
as per RP comments
bogus exception while client shutting down
Merge pull request #2115 from ahmetmircik/fixRandomlyFailing

Fixes randomly failing test testSlowStore
small improvement : increase sleep time
check size in assertTrueEventually
use assertOpenEventually
Merge pull request #2121 from gurbuzali/client-bogus-exception/3.3

bogus exception while client shutting down
Merge pull request #2119 from ahmetmircik/backupRemoveOp3

Introduces removeBackup method in backup operations
Merge pull request #2108 from Danny-Hazelcast/clientTxnMultiMapTest1

Client txn multi map test when backed by List
fixes #2131
Merge pull request #2109 from eminn/fix/nearcachetests

fix near cache problematic tests.
containsKey operation now checks first client near cache if the value exists in the near cache. fixes #2100