Fixed issue 775 - consistency between PFTs and the FIA db

Checks are now in place that assure with logger.errors/warnings that:
 -there are not duplicate species in the selected PFTs (error)
 -the selected PFTs cover all species expected by the FIA db (error)
 -the selected PFTs do not have species not expected by FIA (warn)
In any of these cases, a simple lookup table matching species names
to scpds is read (species_names.csv) to output the names of the
trouble species with a nicely-formatted message. Execution is stopped
after the logger.errors. Test cases are enclosed in pft_consistency.R
removed mistakenly-committed files
ignore backup files
fixes on git pull for issue 775
removed obsolete species name table csv
Merge pull request #11 from TonyCohen/master

FIA2ED code now checks following 3 conditions (see redmine #775)
- 2 PFTS have overlapping species (ERROR)
- PFT has species not in FIA (WARNING)
- FIA has species not in PFT (WARNING)
Update README.md
Update README.md
Added python script that Carl used to search Google Scholar for all possible combinations of species and search terms. (from his manuscript appendix)
Merge branch 'master' of github.com:PecanProject/pecan
fixes github #15 by adding default value of -999 when settings is null
Ignore web/system.php since this is system dependend.
Merge branch 'master' of github.com:PecanProject/pecan
Added more defaults to check.settings
changed db.query etc functions. now use db.open, db.close and db.query.
db.open, and db.query use settings as param
db.open might work with other databases (PostgreSQL)
db.open/db.close keep track of connections and print any left open connections (db.print.connections)
Added stop to logger, use this for really bad things.
Load previously saved pecan.xml if exists
Added new flag to pecan.xml <pecan><bety><write>TRUE/FALSE</...> use this to indicate if runs/configs should be written to database (not used everywhere yet)
Use logger.stop if settings are not useable.
Working on removing global settings variable (redmine #1636)
updated map to remove margin
Don't write if bety == FALSE (redmine #1648)
Setup for ebi-forecast
moved configuration to config.php and added config_example.php
show only selected specie name, due to large number of species
save changes made to a logfile