Update changelog

Author: kamilburda

CHANGELOG.md

@@ -1,9 +1,16 @@
+1.2
+===
+
+* Prevented errors when importing the `pypdb` module when GIMP is not fully initialized.
+
+
 1.1
 ===
 
 * Allowed access to PDB procedures via strings as `pdb['some-procedure-name']`.
 * Python exceptions are now raised if attempting to access non-existent procedure names.
 
+
 1.0
 ===