now checking to make sure that java app engine apps have a <threadsafe> tag set to true or false, fixing issue #18
changed name of app_yaml variable to app_config since it could be yaml or xml
Merge pull request #19 from shatterednirvana/with-threadsafe-java-fix

With threadsafe java fix (fixes issue #18)
copying over JSON metadata file to head node so that it can use it to upload apps, fixing issue #20
added fix to properly resolve local file web.xml filename, and changed tests accordingly
Merge pull request #22 from shatterednirvana/with-threadsafe-java-fix

Added fix to properly resolve local file web.xml filename
extracted string constants to global variables, and updated documentation accordingly
added docs for run_instances method
Merge pull request #21 from shatterednirvana/with-copy-json-file

Copying over JSON metadata file to head node
Added AppManager for rsyncing
removed ability to specify --iaas in run-instances, fixing issue #124
removed references to --iaas flag from lib files, and fixed a broken unit test
Merge pull request #23 from nlake44/app-manager

Added AppManager for rsyncing
Changing the tools to be compatible with the new infra manager. I'm only changing the functions that are not related to hybrid cloud scenarios. Hybrid cloud related code needs to be revised and fixed propery in a future iteration.
fixed broken unit test, which was expecting the wrong exception type
Merge pull request #28 from shatterednirvana/with-remove-app-tc-fix

fixed broken unit test, which was expecting the wrong exception type
Merge pull request #26 from shatterednirvana/without-iaas-flag

Removed ability to specify --iaas in run-instances, fixing issue #25
bumping version number to 1.6.4
Merge pull request #30 from shatterednirvana/release-1.6.4

bumping version number to 1.6.4
Merge pull request #31 from AppScale/testing

Merged changes from 1.6.3 to 1.6.4