combine mentions with the rest of notifications

it contains also commits which speedup notifications api

added 2 commits

• 1c8fecf5 - speedup notifications api by limit joins with hive_votes and hive_posts_view
• 0641667f - notifications sql definitions moved to sql scripts

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added 5 commits

• 0641667f...748041f2 - 2 commits from branch develop
• b1fa8c15 - combine mentions with the rest of notifications
• 181dba9b - speedup notifications api by limit joins with hive_votes and hive_posts_view
• f08e55d4 - notifications sql definitions moved to sql scripts

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changed the description

added 13 commits

• f08e55d4...437b7aca - 10 commits from branch develop
• 09a8d551 - combine mentions with the rest of notifications
• c6eb03a9 - speedup notifications api by limit joins with hive_votes and hive_posts_view
• f3f4b4b3 - notifications sql definitions moved to sql scripts

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resolved all threads

added 1 commit

• 58c5b2bb - notifications sql definitions moved to sql scripts

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mentioned in commit 47f63679

merged