fix incorrect systemd script installation, add docs

Author: Ben Klopfenstein

CMakeLists.txt

@@ -22,4 +22,4 @@ target_link_libraries(libcec-daemon ${CMAKE_THREAD_LIBS_INIT} ${Boost_LIBRARIES}
 install(TARGETS libcec-daemon DESTINATION bin)
 install(FILES LICENCE README.md DESTINATION share/libcec-daemon)
 install(FILES etc/libcec-daemon.rules DESTINATION /lib/udev/rules.d)
-install(FILES etc/libcec-daemon.service DESTINATION /lib/systemd/system/libcec-daemon.service)
+install(FILES etc/libcec-daemon.service DESTINATION /lib/systemd/system)

README.md

@@ -31,7 +31,7 @@ git clone https://github.com/KingBonecrusher/libcec-daemon
 * Now we need some buildtools and libraries
 
 ```
-sudo apt-get install build-essential autoconf 
+sudo apt-get install build-essential cmake
 sudo apt-get install libboost-program-options-dev libboost-thread-dev libboost-system-dev liblog4cplus-dev
 ```
 
@@ -49,7 +49,18 @@ sudo bash install-libcec.sh
 
 ```
 cd libcec-daemon
-./bootstrap && ./configure && make
+cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr .
+make
+```
+
+* Install libcec-daemon
+```
+sudo make install
+```
+
+* libcec-daemon's systemd script and udev rules need the cec user and group:
+```
+sudo adduser --quiet --system --group --disabled-password --system --shell /bin/sh cec
 ```
 
 Usage