eb-7229: avoid email_lookup records where the to/from value are the same
eb-7229: convert emails in yfs_customer_contact table
eb-7229: added execution instructions
eb-7232: convert emails in xpx_customercontact_extn
eb-7229: removed debug query
eb-7313: convert emails in xpx_customer_extn_list
EB-7231(yfs_customer),eb-7234(yfs_person_info) and EB-7236 XPEDX_SALES_REP)  update sql scripts
Merge remote-tracking branch 'upstream/master'