Change some http-urls in the DESCRRIPTION and the documentation to ht…

…tps-urls.

pkg/DESCRIPTION

@@ -1,7 +1,7 @@
 Package: memisc
 Type: Package
 Title: Management of Survey Data and Presentation of Analysis Results
-Version: 0.99.27.1
+Version: 0.99.27.2
 Date: 2020-11-01
 Author: Martin Elff (with contributions from Christopher N. Lawrence, Dave Atkins, Jason W. Morgan, Achim Zeileis)
 Maintainer: Martin Elff <memisc@elff.eu>
@@ -19,5 +19,5 @@ Suggests: splines, knitr, rmarkdown, sandwich
 Enhances: AER, car, eha, lme4, ordinal, simex, tibble, haven
 Imports: grid, repr, data.table
 VignetteBuilder: knitr
-URL: http://www.elff.eu/software/memisc/,http://github.com/melff/memisc/
-BugReports: http://github.com/melff/memisc/issues
+URL: http://www.elff.eu/software/memisc/,https://github.com/melff/memisc/
+BugReports: https://github.com/melff/memisc/issues

pkg/inst/ChangeLog

@@ -4,6 +4,7 @@
      as distinct statistics.
    - An attempt to coerce an "importer" object into a data frame directly is now flagged
      as an error.
+   - Change some http-urls in the DESCRRIPTION and the documentation to https-urls.  
 
 2020-10-10:
    - 'codebook()' better handles character variables in SPSS system files.

pkg/vignettes/anes48.Rmd

@@ -14,14 +14,14 @@ knitr::opts_chunk$set(comment=NA,
 
 This vignette gives an example for the analysis of a typical social science data set.
 It is the data file of the *American National Election Study* of
-1948[^1] available from the [American National Election Studies website](http://www.electionstudies.org). The data file contains data
+1948[^1] available from the [American National Election Studies website](https://www.electionstudies.org). The data file contains data
 from to USA-wide surveys conducted October and November 1948
 by the Survey Research Centre, University Michigan
 (principal investigators: Angus Campbell and Robert L. Kahn). The
 total number of cases in the data set is 662 and the number of variables
 is 65 (more details about this
 data set can be found
-at <http://www.electionstudies.org/studypages/1948prepost/1948prepost.htm>).
+at <https://www.electionstudies.org/studypages/1948prepost/1948prepost.htm>).
 
 [^1]: National Election Studies, 1948: *Post-Election Study [dataset].* Ann Arbor, MI: University of Michigan, Center for Political Studies [producer and distributor], 1999. ANES Dataset ID: 1948.T; ICPSR Study Number: 7218. These materials are based on work supported by the National Science Foundation under Grant Nos.: SBR-9707741, SBR-9317631, SES-9209410, SES-9009379, SES-8808361, SES-8341310, SES-8207580, and SOC77-08885. Any opinions, findings and conclusions or recommendations expressed in these materials are those of the author(s) and do not necessarily reflect those of the National Science Foundation.
 

pkg/vignettes/items.Rmd

@@ -429,7 +429,7 @@ as can be seen, `recode()` was called in such a way that not only old
 codes are transferred into new ones, but also the new codes are labelled.
 
 
-[^3]: The [German Longitudinal Election Study](http://gles.eu) is funded by the German National Science Foundation (DFG) and carried out outin close cooperation with the [DGfW](http://www.dgfw.info/), German Society for Electoral Studies.
+[^3]: The [German Longitudinal Election Study](https://gles.eu) is funded by the German National Science Foundation (DFG) and carried out outin close cooperation with the [DGfW](https://www.dgfw.info/), German Society for Electoral Studies.
 Principal investigators are Hans Rattinger (University of Mannheim, until 2014), Sigrid Roßteutscher (University of Frankfurt), Rüdiger Schmitt-Beck (University of Mannheim), Harald Schoen (Mannheim Centre for European Social Research, from 2015), Bernhard Weßels (Social Science Research Center Berlin), and Christof Wolf (GESIS – Leibniz Institute for the Social Sciences, since 2012). Neither the funding organisation nor the principal investigators bear any responsibility for the example code shown here.
 
 ### Case distinctions