[DF-834] base infrastructure
[DF-834] fix boundaries
[DF-877] is fixed.
[DF-834] improvements in particle time lines zoom system
Merge remote-tracking branch 'dava/development' into DF-834_TimeLine
[DF-834] fix under xcode
[DF-866] - related comment is added.
Merge branch 'DF-834_TimeLine' of https://github.com/adebt/dava.framework into pe
Merge branch 'development' of https://github.com/adebt/dava.framework into pe