Release 2.3.1
* Fix log fomatter according to boost version upgrade
* Check a task status inside HandleExt to handle concurrent issue
* Remove error log on NativeMainloop dtor
* Cherrypicks from tizen_3.0 branch (HEAD: 6adc3ec)
* Run set cap script after csr rpm installation
* Make File::Type class to encapsulate filetype op
* Revert "Determine package by removable attribute"
* Determine package by removable attribute
* Add error handling for getting stat
* Downgrade log levels which printed too frequently
* Downgrade some frequently printed log's level
* Remove platform version diff handling
* Version Comparision String Fix
* Apply the reviewed API documentation
Change-Id: I218b60e3934d01f6411d6eb4abec83e58d9332fb
Signed-off-by: sangwan.kwon <sangwan.kwon@samsung.com>