Bit of trivial stuff.

Removed some comments (clutter). Applied some basic formatting - this
ringed a bell: we should have a shared Re# settings file.
Added fallback logic for obtaining the username.

Perhaps some developer stations are not in an AD domain. Therefore,
fallback.
Worked on #1.

Added code for passing the username to the master page (aka the layout).
Changed the page accordingly, too.
Made fields read-only.

Applied the first step for #2.
Test link to issue.

Simply referencing the issue in the commit message doesn't seem to work.
Do we have to add the fixes keyword? Fixes #2.
Merge branch 'master' of https://github.com/simonatecsa/Mood-o-Meter

Conflicts:
	Mood-o-Meter/Views/Mood/Edit.cshtml
	Mood-o-Meter/Views/Shared/_Layout.cshtml