Fix typos, style in RUNNING_TESTS documentation

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Add changelog entry
Add cuke
Fixes Spent Time not localized
Fixes Comparison of history versions in wiki pages ignores newlines
Merge branch 'bugfix/2280_spent_time_not_localized' into dev
Add changelog entry
Merge pull request #1050 from netfighter/bugfix/3148_comparison_of_history_versions
Add changelog entry
Fixes quotes in versions are not properly HTML-escaped
remove border around gravatars
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