fix(synchro): update async part for synchro(refs #4512)

Update async par for shared document in synchro refresh documents
only after the last was recorded
fix(array): fix array add button (refs #2627)

The first button add a line in the first line
The other buttons add line after the current line
fix(image): correct image display after add (refs #4478)

Correct the binding with the code of file binding
Merge pull request #66 from cbonnissent/I2623

fix(synchro): update async part for synchro(fixes #4512, closes #2627, closes #4478)