calcAllSlices() ignores slices containing pipe characters

[FND]

In colon notation, calcAllSlices() does not retrieve slices whose value contains pipe characters (e.g. PrettyLinks? with custom labels):

link: [[target|label]]
image: [img[title|filename]]

[FND]

This error occurs because pipes are explicitly excluded in the colon notation: TiddlyWiki.prototype.slicesRE = /(?:^([\'\/]{0,2})~?([\.\w]+)\:\1\s*([^\|\n]+)\s*$)|(?:^\|([\'\/]{0,2})~?([\.\w]+)\:?\4\|\s*([^\|\n]+)\s*\|$)/gm;

[FND]

this fix also takes care of PrettyLinks? and image markup within slice values

[FND]

added new and updated existing tests

[MartinBudden]

Fixed in changeset:5870