* BUGFIX: Modified containers to not use user-provided settings for basic read operations
  * operator [] and () should no longer disseminate empty knowledge
  * constructors will modify global variables as local variables unless an initial value is specified
  * set_name and similar functions should not modify global variables for dissemination
  * these changes prevent accidentally sending empty knowledge
* Updated version to 1.7.3

git-svn-id: http://madara.googlecode.com/svn/trunk@1322 2850746a-f1c8-11dd-b507-8b4ecd5210be