Defined default stv and applied it to all rule outputs
Merge pull request #796 from williampma/r2l_rule

Combined all TO-DO rule changes
Added separate default stvs for links and nodes
introduce a post-match callback
Fix inconsistent file name
Fixed a crash by cleaning up all the remains of Bindlink in Atomspace properly
Initial checkin of greter-than unit test
misc cleanup
Merge pull request #805 from linas/greater

start work on GreaterThanLink
fix minor compiler warnings
Add missing dependencies
failed attempt to check compiler version
More versioning cleanup
Merge pull request #804 from sebastianruder/r2l_default_stv

Defined default stv and applied it to all rule outputs
Created facts for PLN reasoning taken from SimpleWikipedia
Added some observations
Added further remarks, observations
Added observations for other examples
Updated analysis of 'A scientist is a person who works in science'
Updated/refined further examples