Allow multiple incorrect forms in simple replace rule

Ex. wrong1|wrong2=right1|right2|right3
[ca] update replace.txt using multiple incorrect forms
[ca] Add new rule MEDIAR (commented out)
[ca] New rules in 'Expressions incorrectes'
[ca] More new rules in 'Expressions incorrectes'
[ca] update catalan.info
[ca] Improved rule PARTICIPAR_A_EN
[ca] New rule PAGAR_EL_PATO
[ca] update replace.txt