initial commit for import/export module
little change
Merge commit '687eefda2fcedb17c07ac08cb9e497a9e0342acb' into import-export-module
typo fixed
override disconnect method, now sets $instance to null
typo fixed
added 2 methods and changed 3 methods access from private to protected: needed for import/export modules
import/export module: import needs to have surveys, tests and files implemented. export needs a user interface.
import/import/export module: import module complete!
import/export module: import module complete!
import/export module: export module complete!
import/export module completed with GUI, bug fixes and proper layout
import/export module: minor bug fix in the template
import/export module: increased maximum allowed upload file size
Merge branch 'import-export-module'