Fix for #604
Updating the installation script
Added a new function to generate JSON representation of the parse tree
Added component to return parsed syntax tree
Fixed the configuration of the parser
Improved the invenio-doctor to save the last_recid after each cycle
Added reconnection logic to db class
Small bugfix - when force_reindexing starts from last_recid<>-1; then bitsets were not initialized
Error in config; not all handlers get mongoPort
Added _nosyn fields
Merged with the master