Resolve "Optimize request times"

Closes #864 (closed)

added 8 commits

• ff7cc64c...a8bd7ade - 7 commits from branch development
• 978f83ff - Merge branch 'development' into '864-optimize-request-times'

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added 5 commits

• 978f83ff...aea7af72 - 4 commits from branch development
• 998e4030 - Merge branch 'development' into '864-optimize-request-times'

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added 6 commits

• 196021fc - First step to optimized request times
• 7d16f746 - Merge branch '864-optimize-request-times' of...
• 37fe69f8 - We can now generate json responses for missing results
• 568a3fb2 - loading the new results with ajax is now woking
• 965ca5d5 - Waiting for a specified timeout if no main searchengines are defined
• 11147134 - Changed the Expire to use specified timeout in env file

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unmarked as a Work In Progress

mentioned in commit 40bc1b99

merged