Merge pull request #908 from samcarter/doc

Doc: updated links

base/beamerbaselocalstructure.sty

@@ -489,7 +489,7 @@
         \usebeamertemplate{bibliography entry note}}}}%
   \leavevmode\setbox\beamer@tempbox=\hbox{}\ht\beamer@tempbox=1.5em\box\beamer@tempbox}
 
-% The following code provided by Audrey http://tex.stackexchange.com/a/57247
+% The following code provided by Audrey https://tex.stackexchange.com/a/57247
 \AtBeginDocument{%
   \@ifpackageloaded{biblatex}
     {\apptocmd{\blx@env@bibliography}

base/themes/color/beamercolorthememonarca.sty

@@ -12,7 +12,7 @@
 % the OVERLYSTYLISH option is taken from the albatross theme
 %
 % The colors are those of the Monarca/Monarch butterfly.
-% http://en.wikipedia.org/wiki/Monarch_butterfly
+% https://en.wikipedia.org/wiki/Monarch_butterfly
 % The Monarch is famous for its southward migration
 % and northward return in summer from Canada to Mexico,
 % which spans the life of three to four generations of the butterfly.

doc/beamerug-installation.tex

@@ -94,10 +94,6 @@ \subsection{Installation in a texmf Tree}
 
 Finally, you need to rebuild \TeX's filename database. This is done by running the command |texhash| or |mktexlsr| (they are the same). In MiK\TeX\ package manager and \TeX\ Live |tlmgr|, there is a menu option to do this.
 
-\vskip1em
-For a more detailed explanation of the standard installation process of packages, you might wish to consult \href{http://www.ctan.org/installationadvice/}{|http://www.ctan.org/installationadvice/|}. However, note that the \beamer\ package does not come with a |.ins| file (simply skip that part).
-
-
 \subsection{Updating the Installation}
 
 To update your installation from a previous version, simply replace everything in the directory