Some teams use issue tracker numbers in front of the commit message
subject, followed by a colon. It was not possible to use an issue
tracker rule in such cases, since the issue tracker number would be
interpreted as a keyword due to the colon and therefore displayed in
bold face instead of as a link into the issue tracker.
- it's unnecessary to implement `IEnumerable` interface
- we should check `IsIntersecting` before creating `InlineElement` to avoid unnecessary works suck as running `git cat-file -t <hash>`
- sort whold list after all elements have been added to avoid unnecessary memmove in `Insert`
Signed-off-by: leo <longshuang@msn.cn>
Instead of checking intersections of inline elements yourself before adding an inline element, the new class `InlineElementCollector` prevents intersections internally.
Additionally the inline elements are sorted by the new class, so it's no longer necessary to do this after adding the inline elements.
