PIThread::stopAndWait now returns bool
PIKbdListener on Linux now use piwaitevent_p and can immediately stop
new base method piZeroMemory, also migrate all "memset 0" to piZeroMemory
apply some code analyzer recommendations
ICU flag now check if libicu exists
prepare for more accurate growth of containers (limited PoT, then constantly increase size)
add ""_tr literal to translate string by PITranslator
add pip_tr util, now useless, only can generate *.ts
add qt_support internal lib, now only works with *.ts file
pip_vtt migrate to qt_support
* renamed private members for more clear code
* registerExternalBufferID() method to obtain unique ID for withExternalBuffer()
* PICoutManipulators::PICoutStdStream enum for select stream (stdout or stderr)
* Constructors now accept optional stream
* piCerr and piCerrObj macros
PIDir::temporary() moved to "mkdtemp"
PILog:
* now 4 levels
* you can set max level
* Error writes to piCerr
