Sources in custom dataengine updated only if user subscribe on specified
source. I've implemented drop returing value so if no requested value
found it will return force update event.
Bump API version and add new parameters. Also:
1. Fix function combobox in configuration UI.
2. Drop datasource from time engine as well.
3. Small edit abstractdesources class
* Initial syntax is the following:
* $template{{ some JS code here }} - simple template based on JS
code inside. It works the same as lambda functions, but calculates
only once.
* aw_count(regex) - keys count found for given regex
* aw_keys(regex, [separator]) - keys found for given regex and
joined by using given separator
* aw_names(regex, [separator]) - key names found for given regex and
joined by using given separator (the same as previous but w\o $)
The template and function syntax may be changed before release.
* replace `foreach` to `for (auto foo : bar)` and update CONTRIBUTING.md
accordingly
I suppose the better way is to move weather adaptor to another open
weather engine despite the fact that OWM has provided me a special FOSS
permissions. I've changed weather provider to Yahoo! Weather because
there is no good way to provide my own API key to end-users except for
being compiled to the source code.
In other hand this solution leads to the fact that humidity and
atmosphere pressure is not available for forecast more. And moreover
pressure units has been changed for current weather.
+ fix possible memory leak in dataengine aggregator
+ add "special thanks" group to acknoledgment tab
