Updated ES_Version to 0.90.13

This is what's recommended in the most recent Readme.md file.
added 1 to update-alternatives "java"

sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.7.0/bin/java" 1
This line was causing an error because the 1 was missing.
removed --silent from jython setup and added echo

The --silent caused an install error. Added an echo at the beginning to remind the user of the target directory ( /usr/local/lib/jython)
Updated CouchDB Install b/c 1.3 no longer avail on mirrors

For PM=apt-ubuntu, we use the nilya/couchdb-1.3 ppa as done in the travis build.
For PM= Yum-rhel Updated the file location and fit the "make install" prociess within the if statement.
Added wget requirements/apt-packages.txt

The apt-packages requirements were moved to a different directory, but the install script was not updated. This checks to see if the requirements directory exists. If not, it creates the directory and downloads the latest requirements/apt-packages.txt file to be used later in the install.
Merge pull request #3900 from craigappl/fix-install-script

Fix install script