Moved .h files to include folder. Adapted CMakeLists.txt file to this change.

src/CMakeLists.txt

 # edit the following line to add all the source code files of the library
 SET(sources usb_i2c.cpp usb_i2c_exceptions.cpp)
 # edit the following line to add all the header files of the library
-SET(headers usb_i2c.h usb_i2c_exceptions.h)
+SET(headers ../include/usb_i2c.h ../include/usb_i2c_exceptions.h)
 
 # edit the following line to find the necessary packages
 FIND_PACKAGE(iriutils REQUIRED)
 FIND_PACKAGE(comm REQUIRED)
 
 # edit the following line to add the necessary include directories
-INCLUDE_DIRECTORIES(. ${iriutils_INCLUDE_DIR} ${comm_INCLUDE_DIR})
+INCLUDE_DIRECTORIES(../include/ ${iriutils_INCLUDE_DIR} ${comm_INCLUDE_DIR})
 
 ADD_LIBRARY(usb_i2c_adapter SHARED ${sources})