Add a little debug code for API call failures.
Update change log for issue #71.
Merge pull request #71 from fyfe/feat-debug-failed-request

Add a little debug code for API call failures.
Fix jshint warnings in movies/*.js

- Add missing ;
- Remove unnecessary ;
- Use === and !== comparators
- Use single quotes
- Declare variables before using them
Fix jshint warnings in tvshows/*.js

- Add missing ;
- Remove unnecessary ;
- Use === and !== comparators
- Use single quotes
- Declare variables before using them
Fix jshint warnings in music/*.js

- Add missing ;
- Remove unnecessary ;
- Use === and !== comparators
- Use single quotes
- Declare variables before using them
Fix jshint warnings in include/*.js

- Add missing ;
- Remove unnecessary ;
- Use === and !== comparators
- Use single quotes
- Declare variables before using them
watched is an integer, to set it or compare it to string values.
Set is an empty string when unset not undefined.
Update change log and bump version for issue #73.
Merge pull request #73 from fyfe/fix-issue-73

[WIP] Clean up jshint warnings
Remove unused code from global.js
Remove empty search.js
Remove unused code from include/xbmc.js
Remove unused app.js file.
Remove unused poster/fanart code.
Remove unused default.html
No need to redefine Ext.BLANK_IMAGE_URL
Remove unused checkWatchedInt
Remove unused unsign() function.