Handle NULL in sdb_atoi()
Fix crash in sdba.c
Add some tests
Initial refactoring of query to adopt new syntax

- JSON char is now : instead of ?
- pass all test cases
- add check_key and check_value
- arrays use SDB_RS ',' now
- support atomic queries
- add more test cases
Fix overflow in sdb_aset() fix testsuite for dash
Update sdb manpage
Add `sdb_config` and store last `sdb_set` timestamp
Fix use of negative numbers and add more tests
Add support for quoted strings in sdb_query.
Use new sdb_itoa() (thanks jvoisin) and honor old numbase
Obey numeric base in sdb_inc
Remove useless itoa in json.c
Fix warning
Huge api refactoring and update nodejs and vala bindings
Fix python bindings
sdb_del -> sdb_unset + fix bindings
Fix D bindings
Add missing disk.c
Fix some warnings
Fix use-after-free