arclink: check times in getInventory on channel level instead of
location level (i.e. on downmost level). this can help with faulty
location specifications around OK channel specifications. (see #586)
should fix http://tests.obspy.org/8900/#1
use with statement for open
use with statement for file operations (some files were not closed even)
correct previous commit

wave object has no __exit__ defined
pep8
replace duplicate of SEED Manual..

..with symbolic link. reduces size of whole repo by more than 10%
(closes #565). thanks for pointing it out @bonaime.
fixes imaging test (related to #603) - thanks @megies
adding failing test for ISO specification of timezones
rename test
fixes #620
Merge pull request #620 from obspy/iso_timestring_timezones

support all versions of specification of timezones in ISO strings
"draw" kwarg for waveform plotting

makes it possible to switch off the drawing the canvas after the plot
command. this makes it possible to do further adjustments to a plot
performed in an already existing window before refreshing the window
manually then.
waveform plot: make explicite "fast" method possible

a manually specified "method='fast'" was overridden by a check of number
of pointy in the data in some cases (e.g. mine ;)).
add option "side" to Stream/Trace.taper()

 - makes it possible to apply one-sided taper only
 - changelog
More failsafe SEED channel selection.

Now ignores the station time constraints and only looks at the start-
and endtime of the channels. This is useful to parse faulty SEED files.

Similar to #586 but for SEED files.
Merge pull request #586 from obspy/586

Merge as this appears to be a more common problem (see 67b88ab830).
Implemented method chaining for the Stream class.

Also added a test.
Added method chaining and test to Trace class.
Stream.verify() now able to method chain.