Merge pull request #86 from mdietze/master

Allometry: documentation updates
Merge pull request #87 from mdietze/master

Allometry: doc debugging
Merge pull request #88 from mdietze/master

Allometries: more documentation debugging. Error that’s persisted through...
Allometry: added allom.components table as data object to assist user in setting component IDs in function calls.
Tested MySQL to PSQL migration; it appears that only issues related to encoding remain (and will be dealt with after migration). Related to redmine #1860
Tested MySQL to PSQL migration; it appears that only issues related to encoding remain (and will be dealt with after migration). Related to redmine #1860; Fixes redmine #1910
Merge branch 'master' of github.com:PecanProject/pecan
changes in database checks, test settings files, and check.settings functions to reflect mysql-> psql   conversion.
Removed default betybetybety db settings from test files.  Default driver still MySQL.
fixes gh-89, references redmine #1910, redmine #1860.
mostly trivial changes to PEcAn.DB documentation
minor bug fix for append.covariates found when updating PEcAn.DB tests
wrote tests to check that check.settings handles user/userid/username properly
wrote tests to check that check.settings handles user/userid/username properly
Merge branch 'master' of github.com:PecanProject/pecan

Conflicts:
	settings/R/read.settings.R
Allometry:
- modified allow.BayesFit to return example data
- modified AllomAve to include an x-y figure with the example data and the two fit lines
- More general improvements to documentation, including a working example in AllomAve
Merge branch 'master' of https://github.com/PecanProject/pecan