Fix typos, style in RUNNING_TESTS documentation

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Add specs
Fix preview
Adds permission specs
Fix preview permissions
Fix work package preview permission
Make preview a normal view
Add 'nothing to preview' message
Authorize through #find_optional_project
Reset order of preview texts
Add preview object authorization specs
Authorize preview object access
Preview caption reflects the previewed attribute
Fixes quotes in versions are not properly HTML-escaped
remove border around gravatars
Fixes quote icon in wrong position
remove gravatar border statements
Merge pull request #1055 from opf/feature/no_gravatar_border

remove border around gravatars
Merge pull request #1033 from opf/fix/running-tests-doc-typo-fixes

Fix typos, style in RUNNING_TESTS documentation
Merge pull request #1054 from netfighter/bugfix/3063_quotes_in_versions_not_escaped