Initial code for Oracle support
oracle numRows()
Oracle set role and current schema
Oracle dialect tableExists
Oracle describeColumns
Oracle describeColumns, listTables, describeIndexes
Oracle listTables, describeIndexes, describeReferences
Oracle describeIndexes fix, comments
Merge branch 'oracle' into 1.0.1

Conflicts:
	build/32bits/phalcon.c
	build/safe/phalcon.c
Oracle limit
Oracle limit bug
Oracle lastInsertId and describeIndex bug
Oracle limit bug
Merge branch 'oracle' of git://github.com/marciopaiva/cphalcon into marciopaiva-oracle

Conflicts:
	build/32bits/phalcon.c
	build/32bits/phalcon.h
	build/safe/phalcon.c
	build/safe/phalcon.h
	ext/config.m4
	ext/phalcon.c
	ext/phalcon.h
Merging manually changes for oracle support