Allow name matching for contacts with numbers in their name

For SmartDialTrie, also include numbers as valid characters when
calculating indexes when generating the byte array.

For SmartDialNameMatcher, include '0'-'9' as valid latin characters,
and handle them appropriately after remapping accented characters.

Also fixed a subtle matching bug that would manifest itself when
matching against multiple tokens with similar initials - E.g.
"Dr.Dredd"

Bug 8659001

Change-Id: If461d2760a723ef7fd03dda0c1a1515cd7b44cf6