Merge pull request #18 from ntrianta/fixes

Code refactoring
Merge pull request #22 from ntrianta/fixes

Monthly Aggregation
initial support for POEM retrieval
POEM package refactoring
Merge pull request #23 from ntrianta/fixes

VO results mongo fix
Merge pull request #24 from ntrianta/fixes

VO results fix
Merge branch 'devel' into poems
modified spec file
source code formating
changed function name
Merge pull request #25 from ntrianta/poems

POEM profile retrieval support