Numerous updates to catch up on development in recent Solr versions

[janhoy]

I tried to update the state of things on the Solr side (also as of 4.7) to the best of my knowledge, with some links to docs for more info

[eliaslevy]

In general is looks good, but I have to quibble with some items.

Being able to create a shard replica on the desired node and then removing the shard from the source node does not merit a checkmark for "shard relocation". That is a manual and error prone process. In my opinion, if Solr does not have a single command/API that performs all the required steps, then it doesn't really fully support shard relocation.

Similarly, you can't say you fully support changing # of shards if all that is supported is increasing their number.

[janhoy]

Fair enough, the shard relocation is more a manual workaround procedure (although fully scriptable on API level) in the absence of a true relocate API. I've re-inserted the cross.png and updated text.

Similarly, you can't say you fully support changing # of shards if all that is supported is increasing their number.

True. To clarify and since it is more common to increase than decrease, I've split this feature into two distinct ones and committed a new version.

[janhoy]

I see that one of my edits regarding nested documents may conflict with PR #9 , feel free to choose any of the descriptions when you merge in the PRs.

[janhoy]

What's happening with this PR? @superkelvint ?

[superkelvint]

@janhoy I'm terribly sorry! This PR completely slipped my noticed. I've since updated to Solr 5.3.x. Would you please take a look and resubmit?

[otisg]

Solr 6.6 is out, so this probably needs another round of updates + merge.