[Echo] Some updates.

[Luya Tshimbalanga <luya_tfz thefinalzone com>]

Camera set icon got more modifications. The inline is more lighter to
allow a better transition between value to produce a more volumetric
shape[1].

Document-save got revisited to address the issue about the use of floppy
disk. It now uses the hard disk drive based from drive-harddisk icon.[2]
Document-save-as got the same treatment but smaller icons are not done yet.

More new and modified icons to come soon.


Luya