Update README.release_notes
removed 'synctrigger' functionality from native reader

- the new file reader introduced in eudaq/eudaq#39 removed the old trigger sync scheme
- code for native reader lib now compiles again
- fixes eudaq/eudaq#44 and fixes eutelescope/eutelescope#34
removed unneeded comments
fixed bug in CMake script checking for C++11-compliant compiler for CMake<2.8

- older CMake versions do not know the CMAKE_CXX_COMPILER_VERSION variable, which introduced a bug in the version check for C++11 compliance
- added a compatability variable for older CMake versions into CMakeCompatibility.cmake
- fixes eudaq/eudaq#45
made error message on failed C++11 compiler check fatal and more verbose
changed CMake print script to use routine of CMakeCompatability.cmake for compiler version parsing
added command to fetch git tags to documentation
removed counted pointer
removed Counted_ptr
Merge remote-tracking branch 'upstream/master' into temp
replaced the assignment of the a raw pointer with an assignment of a shared_pointer
removed counted_ptr from miniTLU project

not yet tested
removed counted_ptr

not tested
Merge pull request #50 from RPeschke/main

removed counted_ptr
fixes CMake script for finding ZestSC1 files

- sym linked directories were not correctly traversed -- fixed by setting CMake policy 9 accordingly
fixes parsing of EUDAQ version number from git status and adds some additional information
updated release notes with info on counted_ptr removal
changes CMake not to search for pthread library explicitly but use plattform-dependent threading (based on C++11)

- replaces existing searches for threading libraries with "Find_Package(Threads REQUIRED)" supplied with CMake
- addresses issue eudaq/eudaq#52
fixes compiler error with Clang 5.0 on OSX Mavericks

- error message was:
```
In file included from /users/behrens/git/eudaq/./main/include/eudaq/Event.hh:11:
/users/behrens/git/eudaq/./main/include/eudaq/Serializer.hh:57:13: error: no viable overloaded '>>='
          t >>= 8;
```
fixed bug in serializer routine read_int

- created by changes of commit 471f33c which fixed length of the temporary variable to ensure safe bit-shifting but still returned data defined by the width of the (now fixed) variable instead of the width of the template variable