Added @FileExists validation annotation to Sumac
Incorporated feedback, Added support for File type
Merge branch 'master' into karthik/file-exists-validation

Conflicts:
	core/src/test/scala/com/quantifind/sumac/ValidationSuite.scala
Merge pull request #31 from quantifind/karthik/file-exists-validation

Added @FileExists validation annotation to Sumac
make sure to stay compatible with java 1.6
update latest version
additional test case for @Positive
scoverage
add a way for annotation validation functions to update the value of the field
use combinator parsers to allow more complex Map parsing
use combinator parsers to allow more complex Map parsing
Merge branch 'pierre/mapparser' of github.com:quantifind/Sumac into pierre/mapparser
Merge branch 'pierre/mapparser' of github.com:quantifind/Sumac into pierre/mapparser
Merge branch 'pierre/mapparser' of github.com:quantifind/Sumac into pierre/mapparser
Merge pull request #40 from quantifind/pierre/mapparser

use combinator parsers to allow more complex Map parsing
Merge pull request #39 from quantifind/annotation_validation_update

add a way for annotation validation functions to update the arg value
Parse lists with quoted items
allow one single quote
allow single quotes for quoted items in map and lists
factor out some code betweent he parser combinators.