Merge pull request #127 from nurikabe/master

Quick typo fix.
* Modified limit defaults on Search methods
* Updated Default limit to to null.  Now defaults to 10 unless otherwise specified.
* Updated TestCases
_convertRequest can use alot of memory on a bulk request and it occurs anyways for no real reason that I can see when _log == false.
Update lib/Elastica/Log.php
I was tracking down a memory leak and found that the curl handle was the source.  I honestly don't know what it's persisting.  In any case, I modified it to close the handle when it's done.  I don't think it will make a difference in performance to close/re-init in this case.

I'm bulk inserting 1million+ docs, 2000 at a time, and no more memory error.
Turns out that returntransfer == true will leak memory.  I turned it off and used an output buffer instead.  I have tested it and it works.
I replaced the to(Camel|Snake)Case functions because it was using the e modifier with preg.  I disallow it on my web applications with Suhosin (because it's essentially like eval() which I also disable), so it was raising alerts and ending execution.  The changes give the same results and and are much faster.

Benchmark 10k iterations

toCamel:
old: 0.12451505661
new: 0.0247340202332

toSnake
old: 0.219540834427
new: 0.0532169342041
Merge pull request #136 from scragg0x/master

Util::to(Camel|Snake)Case()
Merge pull request #133 from scragg0x/patch-1

Elastica_Log
Sends percolate request when running a bulk index.
Merge pull request #137 from weejames/patch-1

Sends percolate request when running a bulk index.
Merge pull request #134 from scragg0x/patch-2

I was tracking down a memory leak and found that the curl handle was the...
mlt_fileds in Elastica_Query_MoreLikeThis renamed to fields (as of ES 0.19.0). Percolator test fixed
Merge pull request #130 from farrelley/master

Fixes Default Limit
* Added ability to delete index type.
* Added unit test to make sure that index type get deleted.
* Added getMapping to the index to return all the mappings of an index
* Fixed test to look at Exception message.
Merge pull request #139 from farrelley/master

Elastica_Index getMapping | Elastica_Type delete()
Ignore build folder added