Alter spoint op family to add missed operator 17 (<->) (#121)The upgrade script misses the altering of spoint operator familyto add operator 17. It is required for k-NN search.Change the version to 1.5.1.

Alter spoint op family to add missed operator 17 (<->) (#121)The upgrade script misses the altering of spoint operator familyto add operator 17. It is required for k-NN search.Change the version to 1.5.1.

Fix output precision limit for double values (issue#118) (#119)Fix output precision limit for double values (issue#118)pgSphere used its own setting (set_sphere_output_precision function)to limit the output precision of double values, that could not begreater than 15 significant digits (DBL_DIG). It introduced someproblems with dump/restore. PostgreSQL uses its own precision setting:extra_float_digits. The PostgreSQL setting allows to use more significantdigits.This patch changes the default pgSphere output behaviour to utilizePostgreSQL extra_float_digits. Now, extra_float_digits is used by default,until set_sphere_output_precision is called.The old behaviour is kept for compatibility purposes. Once,set_sphere_output_precision is called, pgSphere starts to use the oldbehaviour (read, please, issue#118 discussion).The patch introduces a new function - reset_sphere_output_precision.It is used to reset to the PostgreSQL behaviour after usingset_sphere_output_precision.* Update upgrade script (reset_sphere_output_precision function)* Add test for pgSphere output precision with different settingsexpected/output_precision.out   - PG 10-11expected/output_precision_1.out - PG 12+* Add extra_float_digits = 2 for epochprop and bounding_box_gist tests

fix Makefile dist targetthe sparse.c and sscan.c files are now committed in src dir

Merge pull request#110 from vitcpp/make-release-1.4.1Make release 1.4.1

Adjust release version 1.3.2 to 1.4.0 (#105)

Merge pull request#62 from vitcpp/gcc-bug-323Fix overlaps.sql test fail on 32 bit Debian due to gcc bug 323

Merge pull request#59 from vitcpp/fix-upgrade-script-brinFix pg_sphere--1.2.3--1.3.0 upgrade script (add brin support)

Merge pull request#32 from stepan-neretin7/17_fix_theta_function[ISSUE#17] Corrected the angle functions to fix the incorrected results strans function according to the documentation.

Create Release 1.2.2 tag