[FIX] Index: fixed a type problem with recursive find<Backtracking>()
[INTERNAL] Yara: specialized Extender<> by distance
[INTERNAL] Yara: decoupled bucket() from matches
[INTERNAL] Yara: introduced MemberBit and MemberLimits metafunction to control struct's member bit-width
[INTERNAL] Yara: generic getters
[INTERNAL] Yara: generic getters
[INTERNAL] Yara: generic getters
[NOP] Yara
[FIX] Yara: fixed return types
[INTERNAL] Yara: added headers to indexer
[FIX] Yara: fixed hamming distance extension
[FIX] StringSetPosition: added const spec
[FIX] Yara: put overloadings within seqan namespace
[INTERNAL] Yara: added TSpec to Extender<>
Merge pull request #492 from esiragusa/refactoring/yara/bench

Refactoring of Yara matches, etc.