Merge pull request #29 from ovidiuiliescu/2.4-preparation

Improved build support for Nokia Asha devices.
allowing to specify a maximum number of currently initialized items
fixed group relation
added initial ChunkedStorageCollection implementation
improved chunk collection further
Merge pull request #30 from ovidiuiliescu/2.4-preparation

Fixed gesture handling for screens that have multiple frames.
improved chunked storage collection
Merge remote-tracking branch 'enough-origin/2.4-preparation' into 2.4-preparation
Fixed removeCommand() bug that caused some commands to be skipped when removing all commands (as well as possibly other side effects).