When the total page number is large enough (usually about 80+), sqlite will throw error: "Too many variables". This commit reduces the chunk size for sqlite configuration.
For building suggest in elasticsearch, the safeContent field will be splitted into arrays. If the page is renamed or moved, the server will throw error: "Cannot read property 'split' of Undefined", and the index will be broken. Here two lines are added to fix this issue.
* Feature: Custom configuration for elasticsearch
For better search results especially in Chinese, which the standard token analyzer may not work well.
* Set default analyzer in settings when building index
* Remove dangling comma