ChainTipper Release 1.0-beta17

1.0-beta17:

• catch and ignore praw.exceptions.ClientException when finding tipping_comment from chaintip message (sometimes it's 4xx)
• translate Acceptance column (simplify): "funded" -> "unlinked", "received" -> "linked"
• bugfix: ignore unresolvable tipping_comment_ids
• set tip amount text only if parsed correctly
• parse tip amount text even on paid tips (for example during import process), but still do not evaluate amount_bch, amount_usd
• change isFinished() (greying out) logic to not look at the removed Chaintip column any more