explicitly cast simplexml nodes to string.
renamed make file to adhere to drush make naming conventions.
removed dev make file.
reorged make files.
added tmp dir to git ignore list.
added make file for travis/ci.
updated build and installation instructions.
options options.
adjusted travis build to new makefile structure.
Merge pull request #13 from ucsf-drupal/reorg_make_files

Reorg make files
Merge branch '7.x-1.x' into eliminate_warnings_during_installation
removed redundant calls to drupal_mkdir. pull drupal_mkdir out of loop to stop warnings.
fixed bug in profile configuration in makefiles.
Merge branch '7.x-1.x' into eliminate_warnings_during_installation
added drupal_mkdir() calls for creating parent dirs back in.
Merge pull request #14 from ucsf-drupal/eliminate_warnings_during_installation

Eliminate WD warnings during site installation