new actions, some corrections to sftp driver for AJXP, come back of the Wrapper to open_with action...
remaining dev before first step for integration into BGP :
- upload,
- no share (buggy),
- no external window (also buggy),
- no ajxp link,
- corrections on open_with for non-plain files,
- need to patch the redirection to the working dir when you quit a repo and come back to,
- download corrections (probably based on new version of phpseclib, which allows to cut into 20MB parts the files)