Adding Samples in archetype for iOS PageObject Model

* Added Class file containing the sample test script
* Added yaml file to be used with the sample test script
* Added entry to suite file
* Added assert and log statements to test script in the archetype
Updates for building on Travis CI and misc bug fixes

* Corrected some misc issues with the test suites
* Add phantomjs to defualt grid config
* Add install-ios-driver shell script for cloning, building, and
  installing ios-driver to local maven repository
* fix #17 - issues running SeLion client tests since latest ios-driver
  SNAPSHOT
* fix #18 - unsupported command-line displayed in chrome
* fix #19 - issues with WindowsProcessHandler
* fix #20 - chromedriver not found due to hard-coded assumption in
  SeLion server component
Add ability for to specify the baseFolder location which
contains Page assets such as PageYaml

* fixed: Code generator went through all .yaml in scr/main/resources
  causes errors if user has .yaml files that are not compatible with
  the SeLion-Code-Generator. SeLion-Code-Generator will now stay in
  the GUIData folder as described by the documentation.
* fixed: .yaml files in the GUIData root folder can now be parsed correctly
Change Travis CI config for PR's originating from forked repos
Switch environment variable that run-travis-ci-tests.sh checks for to SAUCE_USERNAME
Update AUTHORS file
Merge pull request #2 from paypal/develop

pulling changes on 9/19