increase timeout on cucumber features
added questions about the weather

* these questions request current weather information for a bunch of cities in the world from users
* this implies players need to connect to the internet to provide the correct answer
* players are awarded a variable number of points depending on the accuracy of their answer
* it relies on yahoo-weather interface (and gem)
* random weather can be generated when not connected to internet
updated .gitignore with IDEA project files
some notes to prepare geocoding questions
introduced an event log which records all events in a game

* event log is saved to *.log file in current directory
* it records all major events in a game: player start/withdraw, questions asked, answers, awarded points
* (not implemented) it can be used later on to reload a game at some state or provide game's analysis
ensure correct penalty for questions providing variable number of points
move views following upgrade to dependencies

* looks like this change is accidental following a `gem upgrade`
introduced fixed timeout of 10 seconds
replace smoothie with flot for graphing on /graph page
improve layout of more screens using bootstrap
bind server to all available interfaces
provide the ability to save/load the list of questions to ask at startup

* questions' class list are stored in a `questions_factory.yaml` file
* this list is looked up at startup and loaded if it exists