re-arrange document structure
re-arrange docs structure, add process docs

Major additions to:
- dev guide
- process docs
remove some un-used empty files
fix misc typos and mis-spellings

refs #13785
re-arrange document structure
re-arrange docs structure, add process docs

Major additions to:
- dev guide
- process docs
remove some un-used empty files
Remove 'armstrong' theme setting

refs #13785
Point to correct version of 'issues' file

refs #13785
re-arrange document structure
resolve conflicts in rebase

refs #13785
remove some un-used empty files
re-arrange document structure
remove some un-used empty files
Remove 'armstrong' theme setting

refs #13785
Fix minor typos and duplicate reference error

refs #13785
Fix explicit vagrant references

refs #13785
Merge branch 'enhancement/13785' of git.osuosl.org:ganeti/ganeti_webmgr into enhancement/13785

Conflicts:
	docs/source/dev/developers.rst
	docs/source/index.rst