Update to match semantic versioning
Merge tag '1.2.0' into develop

Release 1.2.0
Checkout proper version of SeqWare before doing anything else
Merge pull request #20 from CloudBindle/feature/seqware_1_1_0_version_strings

Update to match semantic versioning
Update ubuntu_12.04_seqware_master_install_script.sh

Properly go into seqware directory and checkout tagged version
Update ubuntu_12.04_minimal_script.sh

Adding r-base package to the base box
Added libxml-xpath-perl to the pancan script
documented process to create AMI images
Fixed oozie database from Derby to postgres

Fix postgres hook-up, looks like working directory has assumed in original script, not sure if working ever. Tested manually on VM
Exclude master node from SGE Hosts
Revert "Exclude master node from SGE Hosts"

This reverts commit 74318d8e1e67d111073554ea329690626cc60e8d.
Restricted SGE to take up 75% of master node's memory
make sure SGE leaves 4gb memory for the master node
changed seqware version to 1.0.15
Merge branch 'release/1.2.1' of https://github.com/CloudBindle/Bindle into release/1.2.1
Added SGE_master_node_memory param to json files
bug fix for sge master node memory issue
updated usage for the launcher script
improved clarification on gluster params
updated usage for launcher script