Added new DeckFloatItem with tests
Added DOUBLE enum to ParserValueTypeEnum
Renamed FLOAT to DOUBLE in JSON files, tests and some code using the enum
Added WGRUPCON, and simple YES/NO handling in Schedule
Added ParserFloatItem + some tests. More tests may be needed.
Added support for guide rate
Removed special float/double handling in ParserFloatItem
Added guide rate phase enum
Merge pull request #126 from AtleH/floatitem

Added DeckFloatItem, ParserFloatItem
Added rest of WGRUPCON handlingin Well and Schedule
Support for PATHS keyword - first take
Forgot to add new JSON file for PATHS keyword
Removed some logging output from Parser
fix the "DATES" keyword

The time of the day field was missing. The defaults for it are those
of E100.
fix the definition of the START keyword

this one had the same problems as DATES
trivial: fix end-of-file comment in Completion.hpp

that clearly was a copy-and-pasteo...
TimeMap: replace boost::gregorian::date by boost::posix_time::ptime

this is necessary because boost::gregorian::date does not have a
notion of "time during a day" which is required to specify time step
lengths less than a day...
TimeMap: simplify the initialization of the eclipse month name map slightly
TimeMap: Expose more data

basically, we now can access the beginning of a timestep its length
and the total time passed since the beginning of life, the universe
and all the rest.
TimeMap: add constructor which takes a deck

this simplifies things considerably and hopefully avoids code
excessive code duplication..