working on xChunk
implemented self references
fixed bad envirnoment lookup
fixed issues with param evaluation in methods
added test to see if self reference works;
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a second half-working method for dynamic methods
added more likely attempt at getting kea to work
passes some unit tests.
passes some unit tests.
unit tests for reflection are passing.
fixed environment issue in xIterate
simplified substitution
reverted changes
updated docs
Merge branch 'develop' into releases