Patch a bug in buildgraph, limit logging to stderr in the tango function

when stderr is not a tty and switch to version 0.2.03

VERSION

-0.2.02
+0.2.03

python/orgasm/assembler/_tango.pyx

@@ -179,7 +179,7 @@ cpdef AsmbGraph tango(Assembler self,
                 delta+=1
                 lastseeds=[1]*1000
             
-            if progress and (icycle % 50)==0: 
+            if progress and (icycle % 50)==0 and sys.stderr.isatty(): 
                 print("%s : %d bp [%4.1f%% fake reads; Stack size: %8d / %6.2f %d  Gene: %s " % (wheel[(icycle//10) % 4],
                                                                                                  len(graph)/2,
                                                                                                  float(fake)/(len(graph)+1)*200.,

python/orgasm/commands/buildgraph.py

@@ -242,6 +242,7 @@ def run(config):
         
         if coverageset:
             logger.info('Coverage forced by user at : %d' % coverage)
+            minread,minoverlap = estimateMinRead(r,config['buildgraph']['minoverlap'],coverage)
             
         else:
         ##########################

python/orgasm/version.py

 major = 0
 minor = '2'
-serial= '02'
+serial= '03'
 
 version = "%d.%s.%s" % (major,minor,serial)