Add suggest stats

closes #4032
add human readable start_time and refresh_interval

closes #5280
[TEST] Removed skip regex sections as all the runners implemented the feature
fix dynamic_type in dynamic_template

closes #5256
[TEST] Update TTL test can fail on faster boxes - improve range of valid vals
Fixed highlighting inconsistencies between REST and Java api

Exposed HighlightBuilder missing global options in Java API: fragmentSize, numOfFragments, highlightFilter, boundaryMaxScan and boundaryChars
Exposed SearchRequestBuilder missing global options shortcuts: setHighlighterFragmentSize, setHighlighterNumOfFragments, setHighlighterFilter, setHighlighterBoundaryMaxScan, setHighlighterBoundaryChars, setHighlighterFragmenter, setHighlighterPhraseLimit & setHighlighterForceSource

Closes #5281
[TEST] Wait for shards to allocate before cleaning caches
Update has-parent-filter.asciidoc

"This filter return child..." => This filter returns child...