Add test case for source file encoding
Import modules source files as UTF-8 encoded
Remove redundant “to do” section from README
Add explanation for object access syntax
Correct readme mention of attaching in modules
Improve documentation for `module_file`
Add example to `module_name` documentation
Fix license specification
Merge branch 'issue-10' into develop

Fix #10
Merge branch 'issue-20' into develop

Fix #20 by making all source files parsed as UTF-8. May add file
encoding specifications later.
Make non-function objects exported
Add test for hidden name export
Lock bindings of exported symbols
Update README to reflect changes
Merge branch 'issue-7' into develop

Fix #7
Merge branch 'develop'
Update documentation
Fix bug with modules exporting only one symbol
Add the `export_submodule` function
Merge branch 'export-submodule' into develop