make Expiration Time = Last Update Time + TTL
Cache avg put time, fixes #4029
Merge pull request #4030 from emrahkocaman/fix/master/cache-avg-put-time

Cache avg put time calculation, fixes #4029
Merge pull request #4020 from ahmetmircik/fix/3.4/ttlExpiration

Makes Expiration Time = Last Update Time + TTL
ignore an unknown portable field and return false for unknown field portion of that query
add 5 minute timeout to query operation when running parallel
tiny refactoring
put in a couple of Serdar comments

Installation, Map-Backup
Serdar comments in set.md

I put in a couple of Serdar’s comments.
put in a link

pointed to a definition of processExpiresFrequency, since the
definition was a couple of paragraphs away.
Initial work on adding the performance monitor
fix javadoc to clarify thread safe access guarantees to wrapped write-behind-queue
Improved Javadoc
Merge pull request #4033 from ahmetmircik/fix/3.4/portableUnknownField2

Fixes unknown portable field exception when querying
Checkstyle improvements
Fixed few javadoc problems
Reviewed the newly added Note.
Merge pull request #4041 from pveentjer/feature/3.x/performance-monitor

Performance monitor
Adding a new chapter (Cluster Management).
fired entry event should include old value after remove if same operation