Multiple file upload.

Adding functionality to support multiple file upload while creating a
new event.
Added multifile upload functionality to edit event

added multiple file functionality while event edit. also refracted
the file view module and add event modal view.
Adding style to the file upload list.

added some css styling for file list elements to make it aligned.
Removed unwanted console loggings.

Removed unwanted console.logs.
Merge pull request #36 from jaisonjustus/dev

Multiple File Upload functionality.
:+1: