Merge pull request #4 from portisheadaff/evergreen

Evergreen
XmlaSessionConnectionManager draft
revert close connection for populateMember in properties, causes error in olap4j
revert oops extraProperties were not being used
[MONDRIAN-1912] Added support for FORE_COLOR and BACK_COLOR in Calculated Cell Properties.  Up until now, Mondrian was not aware of these two properties.
Merge branch 'evergreen' of https://github.com/tgf/mondrian into evergreen
Merge pull request #5 from wgorman/evergreen

[MONDRIAN-1912] Added support for FORE_COLOR and BACK_COLOR
[MONDRIAN-1791] added isLeaf function
[MONDRIAN-1180] Support EXISTING keyword

parser and function definition
tests
reusable code between exists and existing moved to FunUtil
Merge pull request #6 from sszabo/MONDRIAN-1791

[MONDRIAN-1791] added isLeaf function
[MONDRIAN-1791] remove iface override from IsLeaf
Resolve ambiguous access to hierarchies
Merge branch 'evergreen' of https://github.com/tgf/mondrian into evergreen