Merge pull request progit#1055 from 4wk-/adjusting-documentation-1053…

…-1054

Adjusting documentation progit#1053 progit#1054

Merge pull request progit#280 from wbzyl/patch-1

Update progit.asc

Merge pull request progit#1046 from agowa338/agowa338-patch-1

Update for PowerShell 6 (Core) and Visual Studio Code

Merge pull request progit#1049 from danstur/fix-1047

Fix incorrect note about PowerShell quoting.

Merge pull request progit#1048 from pine3ree/patch-1

word typo?

Merge pull request progit#1045 from jugglinmike/appendix-c-typo

Correct typo

Remove the generation by direct calling of asciidoctor

In order to ensure repeatable book builds and cut down any issues
concerning rendering, the build is only ensured through the
installation of the required versions with bundle and the run of the
Rakefile.

This closes progit#1039

Remove reference to master for contributors'list

The clone made by travis doesn't seem to get the references.

Merge pull request progit#1037 from nicktime/patch-1

Fix bzr fastimport plugin install guide

Merge pull request progit#1038 from notlmn/grammar

add omitted word