Turns out including a PHP file in a PHAR file is not cacheable by APC. This
patch adds APC stash support to the translation loading phase, if supported.
This seems to save about 2.5ms (3.6ms down to 1.1ms) processing time per
request. Most of the savings is in the PHAR file processing time (signature
verification), which is avoided if the translation can be loaded from APC.

Merge conflict caused the inclusion of the template to be lost

Crowdin seems to have difficulty parsing YAML files with spaces between list
items. This patch avoids the issue by removing unnecessary empty lines in
the file.

And fixup the migration patch

Crowdin recreates YAML files with indent specifications which Spyc does not
currently handle:

body: |2
  body contents written
  here with 2 leading spaces

This is part of the Yaml spec after 1.0

backportme

Implement the logic to set status

Help topics and filters can override the default status

Changed Resolved to resolved state
Add ability to get statuses by states