glue.segments: don't add python stdlib symbols to our namespace

this patch hides the bisect_left(), bisect_right(), and copy() functions
from the Python standard library and that are imported by this module from
this module's exported name space.
glue.segments: edit some doc strings
snglcoinc.py: aesthetics
lalapps_run_sqlite:  show file count in progress reports
fixed HierarchSearchGCT timing calculation

  - nf1dots_fg,.. is the number of fine-grid points *per coarse-grid
    point*!, so we need to multiply this by nf1dot to correctly get
    the total number of fine-grid points 'Nfine'
XLALSimAddInjectionREAL8TimeSeries(), XLALSimAddInjectionREAL4TimeSeries():  performance improvement

avoid frequency-domain sub-sample time shift if amount of shift is less than 10^-4 samples (about 5 ns at 16384 Hz).
lal:  add windowed-sinc REAL8TimeSeries interpolator machinery
TimeSeriesInterp.c:  typedef redefinition error on older gcc's
Adding .write_script() to pipedown (which I thought I did 6 months ago)
Adding dbaddinj change in redmin patch # 909 back into single stage pipedown
Adding a hack to ligolw_cbc_compute_durations to allow it to run with pycbc_inspiral and ahope ... need to talk about this more with Collin. The current way this works is extremely inflexible, but not sure what the best solution is ... maybe we can abandon completely the concept of playground within ihope and let pipedown deal with it all internally
add -Wl,-no_compact_unwind to LDFLAGS on Mac OS X