When closing the window, disconnect instead of asking the user to do it
Ask confirmation before closing if user has unsent input
Merge pull request #432 from glowing-bear/disconnect-when-closing

When closing the window, disconnect instead of asking the user to do it
fixup font-family and font-size setting glitches

Replace fontSize placeholder by default value. Placeholders should be used
as suggestions, not effective values.

Remove spurious default value for fontFamily (it is defined right below)
Merge pull request #433 from glowing-bear/fix-font-size-glitch

fixup font-family and font-size setting glitches
Don't capitalise host name

Fixes #439
Merge pull request #441 from glowing-bear/connection-form

Don't capitalise host name
Re-enable "fetch more lines" after trimming lines on buffer switch

Fixes #404
make the help more pleasant by adding kbd tags
Merge pull request #444 from ailin-nemui/help-kbd

make the help more pleasant by adding kbd tags
Properly Show and hide the sidebar on mobile layout when using Alt+g
Merge pull request #446 from ailin-nemui/show-sidebar

Properly Show and hide the sidebar on mobile layout when using Alt+g
Merge pull request #442 from glowing-bear/fix-line-fetching-after-switch

Re-enable "fetch more lines" after trimming lines on buffer switch
Use strict

Requires turning IrcUtils into an Angular service, because the global variable
trick won't work with use strict.
Reuse is still easily possible by removing the angular wrapping around it.