Slow down fetching
Minor changes
 - using http_client library instead of libcurl directly
 - using implicit conversion to JSON_STRING to improve code readability
 - use ARRAYED_LIST instead of LINKED_LIST .. for performance.
 - cosmetic .. but still a lot of feature clauses are missing, comments, assertions ...
Merge pull request #2 from jocelyn/widget_first_review

Minor changes
Move project to wsf_js_widget
Rename clusters to singular names
Make recommended changes
- Implicit casting
- Use same_string
Fix tuple
Use append
Added comments to autocompletion, input, navbar, progressbar, validator, webcontrol. Some more little changes.