need sudo for make install in quickstart

[michaeldsmith]

if I use this cmake command

cmake -DKDU_LIBRARY=/usr/local/lib/libkdu.a \
      -DKDU_AUX_LIBRARY=/usr/local/lib/libkdu_aux.a \
      -DKDU_INCLUDE_DIR=/usr/local/include/kakadu \
      -DCMAKE_INSTALL_PREFIX=/usr/local \
      ..

using make install in the quick start tries to copy files to

/usr/local/lib/libkduc.so
/usr/local/include/kduc.h

but it permission is denied as shown in the output below:

Install the project...
-- Install configuration: ""
-- Installing: /usr/local/lib/libkduc.so
CMake Error at cmake_install.cmake:52 (file):
  file INSTALL cannot copy file "/home/ubuntu/kduc/build/libkduc.so" to
  "/usr/local/lib/libkduc.so": Permission denied.
make: *** [Makefile:110: install] Error 1

This is fixed by instead using sudo make install