Add separate pseudo-targets for the TurboJPEG and libjpeg regression tests, for those times when you just don't want to sit through 11 iterations of TJUnitTest to find out that your algorithm is broken.

git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.4.x@1513 632fc199-4ca6-4c93-a231-07263d6284db

Makefile.am

@@ -262,7 +262,10 @@ MD5_JPEG_CROP = b4197f377e621c4e9b1d20471432610d
 
 endif
 
-test: testclean all
+.PHONY: test
+test: tjquicktest bittest
+
+tjquicktest: testclean all
 
 if WITH_TURBOJPEG
 if WITH_JAVA
@@ -280,6 +283,8 @@ endif
 	./tjunittest -yuv -noyuvpad
 endif
 
+bittest: testclean all
+
 # These tests are carefully crafted to provide full coverage of as many of the
 # underlying algorithms as possible (including all of the SIMD-accelerated
 # ones.)