added affy tidy patch

sql/patch_56_57_b.sql

+# patch_56_57_b.sql
+#
+# title: Tidy old affy analyses
+#
+# description:
+# Remove AffyAlign and probe2transcript from analysis & analysis_description table
+# Change unmapped_object.type enum to remove probe2transcript
+
+-- Delete in two parts just in case we don't have an ad entry
+DELETE ad from analysis a, analysis_description ad where a.logic_name='AffyAlign' and a.analysis_id=ad.analysis_id;
+DELETE ad from analysis a, analysis_description ad where a.logic_name='probe2transcript' and a.analysis_id=ad.analysis_id;
+
+DELETE from analysis where logic_name='AffyAlign';
+DELETE from analysis where logic_name='probe2transcript';
+
+ALTER table unmapped_object modify type ENUM('xref', 'cDNA', 'Marker') NOT NULL;
+
+
+# patch identifier
+INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL, 'patch', 'patch_56_57_b.sql|affy_analysis_tidy');
+
+