Just put a convenience variable for wsend path
Prepare listing function

Store filename/url of uploads
Need a way to update/delete file from server
Track file upload/deletion on a local file
Add a delete by 'index' function

More practical whan using listing, and avoid typing/pasting link to file
Update usage message
Add a portable way to get an absolute path
Keep an absolute reference on upload

Instead of keeping a cut path which can lead to confusions
Allow direct update from an index in list

Update transparently a file previoulsy uploaded to its remote localtion
(link)
Fix make_absolute function

Take path to file in current directory into account
Update usage with update by index
Fix: remove stupid file remained from tests
Merge pull request #7 from vannell/local_listing_feature

Local listing feature
This feature will be updated when there is a server listing function, but for the moment it is useful and it doesn't impact any of the other functionality.