Stabilizing commit

* move request timeout settings to the configuration header
* initial support of requiredby dictionary
* add AWPatternFunctions namespace
* improve components communication
* update UI to recent abilities
* rewrite qCDebug messages and update CONTRIBUTING.md accordingly

sources/version.h.in

@@ -24,6 +24,8 @@
 #define AWEUAPI 3
 // extweather api version
 #define AWEWAPI 2
+// network requests timeout, ms
+#define REQUEST_TIMEOUT 5000
 // available time keys
 #define TIME_KEYS "dddd,ddd,dd,d,MMMM,MMM,MM,M,yyyy,yy,hh,h,HH,H,mm,m,ss,s,t,ap,a,AP,A"
 #cmakedefine BUILD_FUTURE