Fix get_content returns cache error when post is deleted #73

The fix

• makes get_content backward compatible with steemd legacy
• improves performances by removing unused joins/fields from the database query
• do not change existing database schema and views

It requires the "server" process only to be restarted.

changed target branch from master to deployed_20200928

added 1 commit

• 7157b8d9 - Bug fix - active_votes was missing for deleted posts

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changed the description

added 1 commit

• 21faf589 - DB upgrade must match changes made in commit related to issue #71 (closed)

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merged

mentioned in commit 5b602514