Fixed some @params documentation (includes/[db|installer])

Swapped some "$var type" to "type $var" or added missing types
before the $var. Changed some other types to match the more common
spelling. Makes beginning of some text in captial.
Also added some missing @param.

Change-Id: I3595e9aac69ac42fbb74b0783fae0ad9bcc831aa
Merge "Fixed some @params documentation (includes/[db|installer])"