Old behaviour leads to variable to be serialized always in single quotes
(if shlex decides to quote it). It doesn't allow to expand variables during execution,
so those values should be put inside double quotes instead. This commit
checks if there is sign char in the variable and quotes manually,
otherwise returning shlex call
If value is stored as array in database it is serialized as json, but
read as normal string, which lead to innability to use list patches
This fix also removes any postprocessing (unquoting) for functions
It has been found that there are two cases in which pkgbuild was not
parsed correctly
1. Major case in which there is quotation mark inside comment line,
which would cause ValueError: No closing quotation error
2. Minor case, if there are utf symbols in pkgbuild file (e.g.
hieroglyphs, see ttf-google-fonts-git), it will case incorrect
reading in `_is_escaped` method
* implement local reporter mode
* simplify watcher class
* review changes
* do not update unknown status
* allow empty key patches via api
* fix some pylint warnings in tests
