Addresses issue #30 - file copy will utilize hadoop.tmp.dir config property if present otherwise it will use the hardcoded "/tmp/filecopy"
Create a snapshot method that takes a FileSystem as an argument in addition to the path.
Added the ability to specify a Hadoop Configuration for the operations that spawn Hadoop MR jobs (snapshot, absorb) so that properties can be specified in code.
Revert "Added the ability to specify a Hadoop Configuration for the operations that spawn Hadoop MR jobs (snapshot, absorb) so that properties can be specified in code."

This reverts commit 84f778e38669f57506eea40450808a9fb1b51612.
Revert "Revert "Added the ability to specify a Hadoop Configuration for the operations that spawn Hadoop MR jobs (snapshot, absorb) so that properties can be specified in code.""

This reverts commit 86dcfc952a5d3e8da95859edeb3e5b9de1de80aa.
Merge remote-tracking branch 'dkincaid/develop' into develop

Conflicts:
	dfs-datastores/src/main/java/com/backtype/hadoop/pail/Pail.java