#Ruby Firebird Extension Library 0.7.2 released : fixes unique and descending index flags after backup/restore cycle

Ruby Firebird Extension Library 0.7.2 release fixes unique and descending index flags after backup/restore cycle
Thanx to Pablo Vizcay for the analysis
A few cleanups : drop support for ruby 1.8.5 (deprecated)

PS: and an observation from Brent Rowland

Plenty of coders can sling both C and Ruby, but Ruby C extensions manage to intimidate most. It’s almost like a 3rd language.