renamed class names Ct- to CO2-
changed class name Observation to Observations 
small cleanup changes to template.py

removed StateVector.isOptimized and replaced with an "optimized" parameter in StateVector.write_to_file call

in obs and obspack_geocarbon adding some parameters to function calls

Changed R and HPHR matrices to vectors for serial minimum least squares algorithm in optimizer to save memory (the routines needed only vectors). For the bulk algorithm this is not possible, so nothing was changed for that option.

Changed the localization routine and settings, so that the localization is actually used. Also added some extra logging messages related to localization.

reverted to r1186 (the last one from 2012), with changes in observation files from r1192-1194 preserved

a lot of my helper comments, but they will disappear soon.

performed actions discussed in email #2
removed unused __str__ functions
a bit of ordering of the pipeline.py

got rid of the getid and getversion functions (replaced with direct references to identifiers when used)
did a cleanup to dagridded/statevector

made cleanup in tm5_obsoperator
changed functions names - part 1
removed empty Validate function in obs, as well as its call
removed empty Initialize function in dasystem, as well as its call in pipeline (it's still called in some main functions)

- reduced to one the two-command messages logging 
- removed unnecessary commas and brackets in tuples definition
- removed unused imports
- __str__ definition: changed print to return
- removed unused values attribution ("dummy = ...")
- formatted the code
- repaired bad indentation
- removed dummy returns ("return None")
- removed non-meaning body of baseclasses.optimizer.Localize()