helper function 'or' and 'but' rule
merge and-rule
name correction
Updates scheme rule-helpers for r2l questions; a few bugs remain. . .
de-bugged and tested example sentences, documented relex errors in comments
edited for typos and minor syntax errors
Merge pull request #1048 from misgeatgit/rule-engine

rule-engine version 0.0
Merge pull request #1037 from anitzkin/schemequestionrules

addition of helper-functions for question sentences. .
added missing parenthesis
change InheritanceLink to ImplicationLink for predicates
Merge pull request #1049 from AmeBel/r2l

R2l
syntax correction
Merge pull request #1050 from AmeBel/bug-fix

syntax correction
assorted bug fixes on sureal
added module receive
Merge pull request #1053 from AmeBel/sureal-bug

assorted bug fixes on sureal
Merge pull request #996 from rodsol/subordinating

coordinating conjunction
rule-engine: fix build break

I'm guessing that Amen has a newer compiler than what I have.
This does not build on gcc-4.6.4
rule-engine-tests: fix build break

Older compilers do not support assignments like this.
Merge pull request #1054 from linas/fixy

Rule-engine: support older compilers