May 21 2009
1. SWRescue serier bug fixed

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Apr 10 2009
1. -l option compatible with diff read_length
2. -s min_length after soft clip
3. seq and quality real length is coordinated by soft clip
4. MD contain no 0 except first

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Apr 8 2009
1. -t option
2. -r segfault
3. chang x, y

