Replace link icons (PNGs) with Glyphicons.
update to comment-toggle button

Comment-toggle button now looks like pushed down when toggled on.
Icon on the comment button has been changed so that it reflects the
state of toggle.
Icon for "Raw wiki text" in menu has been changed from "eye-open" to
"file" because it uses the same icon as one for the new comment toggler.
(sorry for changing this!)
Merge branch 'ahaerpfer-feature/link-icons-glyphicons' into font-icons
icon updates

* changed some icons
* adjusted icon size, positions and margins
* set line height of icons to 1
* colored icons in gray rather than the inherited blue-ish color
* a few typo fixes
fixed glitch when editing SideBar

sidebar() method was added to change the id of wiki-generated sidebar
div box from #sidebar to #sidebar-content (by overriding the original
sidebar() method in __init__.py).
Normally, the id of the div box used to be #SideBar.sidebar. However,
when viewing or editing SideBar page, it was changed to #sidebar which
would conflict with one of the parent div boxes with the same id.
added clearfix to content and sidebar

Floating elements near the end of wiki-rendered boxes were causing
broken layout, which is fixed in this patch.
PEP8 compliance (no functional update)

Fixed grammer of memodump.py to comply with PEP8.
Line endings of other files were converted from CR+LF to LF. (I thought
my editor was saving in unix style)
removed link icons for thumbnails etc

Removed icons from links which have wiki transclusions as their titles.
changed deprecated bootstrap class

.alert-dismissable was actually misspelled and deprecated in 3.2.0. Now
we should use .alert-dismissible instead.
Merge pull request #1 from dossist/font-icons

Link icons updated
Some more tuning of icons, color and scaling.
Merge pull request #30 from ahaerpfer/feature/link-icons-glyphicons

Thanks for the PR! Merged.
I will check if this works properly, and when everything is OK, I will merge `font-icons` branch into `main`.
minor code cleaning (no functional changes)
Merge pull request #31 from dossist/font-icons

Changed link icons from bitmap to Glyphicons (font)
minor code cleaning (no functional changes)

added newline at the end of files