update ChangeLog

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-Changes in 0.3 since 0.2
-* fix several issues, stabilizing tracing of large applications
-* add --set-subbuf-size / --set-subbuf-num options to ustctl
-* add a signal safe implementation of snprintf
+2010-03-17  ust 0.4
+       * remove dependency on libkcompat
+       * use atomic ops from liburcu
+       * libmallocwrap: rename to libustinstr-malloc
+       * libinterfork: rename to libustfork
+       * add a testsuite
+       * add ustctl --get-subbuf-size and --get-subbuf-num
+       * updates for compilation with gcc-4.4
+       * remove periodical wakeup in listener thread
+       * change benign warnings to debug messages, not to confuse users
+       * ustd: fix destruction to free all file descriptors and memory
+       * libust: close all file descriptors on close
+       * remove periodical wakeup in daemon
+       * code cleanups
 
-Changes in 0.2 since 0.1
-* conversion of the buffering system to per-cpu
-* update to the liburcu 0.4 API
-* upgrade to trace format 2.6; the latest lttv may now be used
-* add support for clone() interception in libinterfork
-* port refactorings from the kernel tracer up to 0.173
-* enhancements/refactor of libustcomm
-* add sections in the manual about trace viewing and about tracing apps not linked to libust
-* debugging output is now enabled by adding -DUST_DEBUG to the CFLAGS
-* usttrace: change ustd socket name to ustd-sock-PID
-* change app socket directory name for something more descriptive (/tmp/ust-app-socks)
-* code cleanups
-* various bug fixes
+ust 0.3
+       * fix several issues, stabilizing tracing of large applications
+       * add --set-subbuf-size / --set-subbuf-num options to ustctl
+       * add a signal safe implementation of snprintf
+
+ust 0.2
+       * conversion of the buffering system to per-cpu
+       * update to the liburcu 0.4 API
+       * upgrade to trace format 2.6; the latest lttv may now be used
+       * add support for clone() interception in libinterfork
+       * port refactorings from the kernel tracer up to 0.173
+       * enhancements/refactor of libustcomm
+       * add sections in the manual about trace viewing and about tracing apps not linked to libust
+       * debugging output is now enabled by adding -DUST_DEBUG to the CFLAGS
+       * usttrace: change ustd socket name to ustd-sock-PID
+       * change app socket directory name for something more descriptive (/tmp/ust-app-socks)
+       * code cleanups
+       * various bug fixes