Data loader.

Added minimal dependencies of the data loader.
Minimal README for building.
.gitignore with files generated by sbt commands.
Fixed requirements in README.
Merge pull request #4 from ucam-smt/dataloader

Data loader.
Script to set up a single node pseudo-distributed Hadoop cluster.

This script installs a single node pseudo-distributed Hadoop
cluster following instructions from
http://hadoop.apache.org/docs/r1.2.1/single_node_setup.html
It is useful for tutorial purposes and if one has a decent
machine (say 8 cores, 32G RAM), the installed cluster may be
sufficient for extracting relatively large grammars.
Merge pull request #5 from ucam-smt/hadoopCluster

Script to set up a single node pseudo-distributed Hadoop cluster.
Hadoop cluster setup script improvements.

Download java only if not already installed.
More logging.
Test command hadoop fs -ls
Make user directory
Shut down cluster when done
Merge pull request #6 from ucam-smt/hadoopCluster

merging this myself :P
Added command line argument parsing for the data loader.
Merge pull request #7 from ucam-smt/dataloaderCLI

Added command line argument parsing for the data loader.
Extraction step in grammar extraction + command line separator in data loader.

Added code for the extraction step in grammar extraction.
Added separator '=' for cli parsing in the data loader, otherwise
@-syntax from jcommander doesn't work.
Merge pull request #8 from ucam-smt/rulextractXtract

Extraction step in grammar extraction + command line separator in data l...
Added s2t computation step in grammar extraction.

Added code for s2t computation step in grammar extraction.
Use getConf in each main class to be able to pass "-D prop=value"
command line arguments to "hadoop jar class" commands.
Merge pull request #9 from ucam-smt/rulextractS2t

Added s2t computation step in grammar extraction.
Added t2s computation step in grammar extraction.
Merge pull request #10 from ucam-smt/rulextractT2s

Added t2s computation step in grammar extraction.
Bug fix

Was using the Source2TargetJob class instead of Target2SourceJob
class in the main.
Added the merge step in grammar extraction.
Merge pull request #11 from ucam-smt/rulextractMerge

Added the merge step in grammar extraction.
Added the ssh-add command to the Hadoop cluster installation script.

For some reason this command is needed even
for a key with a blank passphrase.
Added JCommander dependency in the Hadoop installation cluster.