* refactor: add a Mediator class to decouple tr_session and tr_port_forwarding
* refactor: add tr_port_forwarding::Mediator::privatePeerPort()
* refactor: add tr_port_forwarding::Mediator::onPortForwarded()
* chore: avoid unnecessary include of timer.h in other headers
* refactor: use a uniform timerMaker() API in mediators
* refactor: rename state enum type as tr_port_forwarding_state
* chore: use snake_case for tr_shared struct fields
* refactor: replace tr_shared with tr_port_forwarding
* refactor: make tr_natpmp_state an enum class
* refactor: uniform naming for port-forwarding module
* refactor: move output-only parameters in tr_natpmp::pulse() to return struct
* fix: use a nullptr multicastif if bindaddr is empty
* chore: use PascalCase for enum class values
* chore: clean up port-forwarding #includes
* chore: remove unused tr_port_forwarding::peerPort()
* refactor: tr_torrentGetMetadataPiece() returns an optional vector
* refactor: use tr_pathbuf in create_temp_path()
* refactor: use tr_pathbuf in win32 create_temp_path()
* refactor: use std::vector in isPeerInteresting()
* refactor: remove tr_new0 from tr_peerMgrPeerStats()
* refactor: remove tr_new0 from rechokeUploads()
* refactor: silence clang nullptr dereference warning
* refactor: make tr_natpmp a C++ class
* refactor: use std::string in tr_log_message
This way all the qualifiers (`const`, `volatile`, `mutable`) are grouped
together, e.g. `T const* const x` vs. `const T* const x`. Also helps reading
types right-to-left, e.g. "constant pointer to constant T" vs. "constant
pointer to T which is constant".
There're places where manual intervention is still required as uncrustify
is not ideal (unfortunately), but at least one may rely on it to do the
right thing most of the time (e.g. when sending in a patch).
The style itself is quite different from what we had before but making it
uniform across all the codebase is the key. I also hope that it'll make the
code more readable (YMMV) and less sensitive to further changes.
1. add the option the code to be used under GPLv2 or GPLv3; previously only GPLv2 was allowed
2. add the "proxy option" as described in GPLv3 so we can add future licenses without having to bulk-edit everything again :)
3. remove the awkward "exception for MIT code in Mac client" clause; it was unnecessary and confusing.
The Berne Convention says that the copyright year is moot, so instead of adding another year to each file as in previous years, I've removed the year altogether from the source code comments in libtransmission, gtk, qt, utils, daemon, and cli.
Juliusz's copyright notice in tr-dht and Johannes' copyright notice in tr-lpd have been left alone; it didn't seem appropriate to modify them.
