rename HAVE_* constants to PSUTIL_HAVE_*
rename HAVE_* constants to PSUTIL_HAVE_*

end18/psutil,kiranvizru/psutil,anfedorov/psutil,PFZheng/psutil,kiranvizru/psutil,nmani1905/psutil,peter-hst/psutil,google-code-export/psutil,huson2012/psutil,creativewild/psutil,skyshe/psutil,creativewild/psutil,peter-hst/psutil,end18/psutil,tigerneil/psutil,AlanZatarain/psutil,tigerneil/psutil,vmolsa/psutil,google-code-export/psutil,google-code-export/psutil,chjwang/psutil,huson2012/psutil,Alwnikrotikz/psutil,nmani1905/psutil,zhengzheng/psutil,creativewild/psutil,marmolu/psutil,end18/psutil,stupidcache/psutil,AlanZatarain/psutil,stupidcache/psutil,PFZheng/psutil,shiva21/psutil,huson2012/psutil,jucapj/psutil,vmolsa/psutil,vmolsa/psutil,skyshe/psutil,Alwnikrotikz/psutil,djhaskin987/psutil,kiranvizru/psutil,marmolu/psutil,anfedorov/psutil,kiranvizru/psutil,end18/psutil,djhaskin987/psutil,djhaskin987/psutil,tigerneil/psutil,chjwang/psutil,skyshe/psutil,skyshe/psutil,djhaskin987/psutil,google-code-export/psutil,stupidcache/psutil,vmolsa/psutil,shiva21/psutil,zhengzheng/psutil,jucapj/psutil,tigerneil/psutil