Moves org-swift from 0.3.0 to the 0.3.1 tag, which matches org's emphasis boundary characters to orgo. Marketing version 1.0.3, build 4.
No behaviour change reachable from this app's content: the patterns whose
parse differs are =verbatim= against a dash or bracket, and neither
README nor anything the app renders from the instance uses that form.
Taken for correctness rather than to fix a visible problem.
Builds clean; gitbayTests passes.