Added search rules for finding license.xml. If license file is not
explicitly specified, the Server will look for 'license.xml' in the
working directory, followed by the directory of the jar file containing
the class VoltDB followed by the home directory.

If the file is found, a info message will be sent to the log indicating
the location where a working license file was found.
Change log from warning to info when default license file is found.
Merge remote-tracking branch 'origin/master' into ENG-5392-ChangeLicenseSearchPath
Merge pull request #1272 from VoltDB/ENG-5392-ChangeLicenseSearchPath

Eng 5392 change license search path
Merge pull request #1260 from VoltDB/fourtwo-integration

Fourtwo integration
Fix password in run script.
Fix baby sitter sorting of the children nodes.

The children nodes are ephemeral sequential nodes, but their prefix are
different. To sort them based on creation order, we have to sort by the
ephemeral sequence number part, not the whole string.
Minor fixes to CoreZK.get*FromChildName() and fix TestBabySitter.
ENG-6150 clone and activate only active elastics post-truncate
Merge pull request #1278 from VoltDB/babysitter-sort

Fix baby sitter sorting of the children nodes.

r=izzy
Add final format of 4.2 books.
Merge branch 'master' of github.com:VoltDB/voltdb
Merge pull request #1279 from VoltDB/ENG-6150-elastic-truncate-activate

ENG-6150 clone and activate only active elastics post-truncate
Merge branch 'master' into origin-fourtwo-integration