* Avoids boot time mutation of REGISTER constant
* Allows to define project specific expression parsing
* Avoids custom (slow) serialization of Expression objects speeding up
reporter / killer IPC
* Improve specification
* Improve integration API as it now finally references an object the config
* Allow reproduction of syntax from Expression#syntax
* Allow instantiation of Expresssion objects without generating the
syntax, much nicer for most specs & internal code, avoids generating
a string to parse it into an expression
* Fix LSP violation in Mutant::Matcher namespace
* Flattens the rspec example groups on filtering to remove redundant
work being done on executing subtrees of already executed example
groups
* Uses test batching to kill one mutation per isolation that results in
a significant speedup.
* Drop rspec 2 support.
[closes#256]
* Nuke around 800 lock
* Honor LSP with not anymore squeezing something non LSP compatible in
the same inheritance tree.
* Separate running from result tree.
* Clean up kill logic and early exits on already dead mutations.
* Fix #runnin? smell for reporters.
* Decouple config object from VM state. Makes it serializable to enable
config loading.
* Fix sequence of global VM events to match PRIOR rspec infects VM with
gazillions of classes / modules. Thix fixes a startup speed
degeneration.
* Various fixes to enhance determinism.
* Replace some unneded manual double dispatch with single manual dispatch for
reporter / runners.
