Document "|default" Jinja2 filter example.
Some minor docs corrections.
Document ansible_managed changing the template.
Add sudo note.
add note about pipelining
docs_pull_request: Add parameters highlighting

Added highlighting to parameter references in docs so that they standout a bit better.
Filter name is singular
Uniform spacing across all filter examples
Fix path to index.html when launching browser
Add link to ansible-examples repo
Add link (with minor rewording) to jinja2 builtin filters
Merge branch 'postgres_alter_role' of https://github.com/jinnko/ansible into jinnko-postgres_alter_role

Conflicts:
	library/database/postgresql_user
Merge branch 'fix-postgres_user_to_understand_pg_namespaces' of https://github.com/alanfairless/ansible into alanfairless-fix-postgres_user_to_understand_pg_namespaces
Merge pull request #6038 from mmoya/docfix

Doc improvements / fixes
Merge remote-tracking branch 'berendt/fixing_permissions' into pull_4703
Merge pull request #6043 from risaacson/pull_4703

I had to remerge this as the original would not automerge. #4703
Sanitize sudo success_key from stdout for raw/script modules

Fixes #5533
Closes #5605
Closes #5606
Closes #5607
Make sure unicode params don't break logging in modules
Merge branch 'patch-1' of https://github.com/eggsby/ansible into eggsby-patch-1
Tweak library installation path to default to /usr/share/ansible if specified