Use recursive merging when concatenating objects

0.3.24

bumped to 0.3.24

Bumped pycparsing to 2.1.1

0.3.22

bumped version to 0.3.22

fixed from_dict

0.3.21

bumped version

pycparsing updated to 2.1.0

0.3.20

bumpred version 0.3.20

Fixed optional substitution

0.3.19

bumped version to 0.3.19

pyparsing updated to 2.0.6

0.3.18

bumped version

Bugfix for nested substitution failure

0.3.17

bumped to 0.3.17

\r and no eol on last line fix

0.3.16

bumped version to 0.3.16

fixed extra space in substitutions and added ConfigTree.merge_configs()

0.3.15

bumped version to 0.3.15

argparse for py26

0.3.14

bumped version