Eight pro-democracy activists charged over a protest against Beijing’s interpretation of Hong Kong’s mini-constitution three years ago were all spared jail on Wednesday.The chairmen of two political parties – Avery Ng Man-yuen, 42, of the League of Social Democrats, and Ivan Lam Long-yin, 24, from Demosisto – were jailed for two weeks at West Kowloon Magistrates’ Court, but had their sentences suspended for a year. Co-defendant Cheng Pui-lun, a 24-year-old former student leader, got the same…