Update fallback version number/date in version.py for the new release

last version with basemap

fractal: adaptive p0 scaling factor

adapt p0 value internally instead of the previously fixed scale value so that the input p0 is equal to C0 from the check_power_spectrum().

check_power_spectrum_1d() use the square part of the input data with dimension as a power of 2, for more robust performance.

wrap up for v1.2beta (insarlab#178)


* Update README.md

* Update version.py

check azimuthAngle while plotting gps vs insar (insarlab#161)

* update comments for plot_transection.py in smallbaselineApp

* utils.get_geometry_file() support checking of a list of datasets

* check both incidenceAngle and azimuthAngle while calling utils.plot.plot_gps()

* prep_aria: do not create azimuthAngle dataset if no azAngle file is input

* stackDict: remove UNIT metadata while loading ifgramStack and geometry* files

* disable GPS related options in tsview.py for now because "insar displacement vs gps displacement" is not implemented yet.

version: bug fix when no new commit after last release

update comments (insarlab#60)

+ docs/paper: update link for nbviewer

+ add temp-c custom colormap cpt file

+ add -s besides --start-date and -e besides --end-date for timeseries2velocity.py

+ asc_desc2horz_vert: add example to prepare asc/desc data

docs/paper: add shell scripts

update code from py27 to py36

add supports for ISCE-2.2/topsStack and GIAnT products
use 3D matrix IO in HDF5 format without compression to replace the previous 2D matrix IO with compression for faster IO speed.
update scripts for unwrapping error correction: automatic bridging method and faster phase closure method.
use pyresample for geocoding to replace scipy.interpolate module, which supports 1) multiple layers of geocoding, 2) radar2geo and geo2radar, 3) parallel processing using multiple cores
new file structures for timeseries, interferogram stacks and geometry files, each corresponds to a class.
new code structure with subfolders/submodules:
add pysar/objects/ subfolder for all scripts defining objects/classes
add pysar/simulation/ subfolder for scripts to simulate decorrelation noise, tropospheric delay.
add pysar/defaults/ subfolder for all default settings files/scripts
move all utilities scripts into subfolder pysar/utils/
move obsolete scripts into subfolder pysar/legacy/
add systematic file reading/writing
improved file plotting scripts: better default setting, faster speed, more advanced choices, etc.
improved raw phase time-series estimation: 1) add weighted inversion with min-norm phase velocity, 2) masking based on coherence/connected components on the fly, 3) split chunks for less memory requirements, 4) add individual redundancy checking
add GPS data download/reading/plotting support
automatic outlier detection based on phase residual RMS
standardize all used metadata to the style of "ABC_DEF" (old names still kept)
shorter and more compact scripts

add weighted network inversion

add support for ISCE product
more flexible step functions and polynomial functions in temporal deformation model for DEM error correction
add support for geocoded InSAR product
switch output timeseries from unavco format to HDF-EOS5 format
add tutorial from 2017 Nov miami workshop
support GIAnT product displaying
add preliminary GACOS tropospheric delay correction by Bhuvan
introduce geometryRadar.h5 and geometryGeo.h5 files to store dem, incidence angle, etc.