Stable release with new timeout function

• fixing a few typos
• adding system function with timeout possibility
  (useful for research in computer engineering where
  generated code may be buggy and result in infinite loops,
  i.e. during autotuning or compiler testing and bug detection)
• ck where repo: will print URL for remote repositories
  (suggested by Anton)
• making text to select UIDs less ambiguous (asked by Anton)
• fixing bug in flatten_dict while working with CLSmith
• changing COPYRIGHT to COPYRIGHT.txt and LICENSE to LICENSE.txt

Stable release (bug fix)

• fixing bug with repository re-caching (when pulling dependent repositories)

Stable release (should be suitable for Artifact Sharing and Evaluation)

• added listing of all modules and their actions in user-friendly format
• added support to zip CK repositories in format suitable for BitTorrent
  (to optimize exchange of large artifacts)
• improved functionality to update repo descriptions
  and manage dependencies on other shared repositories
• fixed a few tiny bugs
• added support to create an entry from a given directory (importing directories)
• added "input_json" function to kernel to input JSON from console ...
• added option "@@@" to CMD to add JSON from console to input
• exchanged "@@@" and "@@" in CMD for simplicity
• improved 'edit' function with the possibility to edit not only
  meta of an entry, but also descrpition (via flag --edit_desc) -
  for example, useful to edit compiler flag description via
  $ ck pull repo:ck-autotuning
  $ ck edit compiler:gcc-49x
• adding --min flag to ''load'' function to output
  only desc and dict to console
• adding --without_files to avoid copying files
  when copying/moving CK entries (useful
  to create templates for example for benchmarks
  or data sets)

Stable release (preparing for packaging)

• changing functionality of "ck pull all" - now it will be updating
  all shared repositories but will not touch CK kernel itself.
  To update all repos and kernel, run "ck pull all --kernel".
  This is needed if CK is distributed as a standard python package ...

Stable release with some important functionality for autotuning

• several extra features to improve autotuning
• save/load extra json files to/from entries
• adding desc.json into .cm (collective meta) to describe API in flat format
• adding dependencies to repos (automatically pull all related repos - useful to distribute repos with all packed artifacts to reproduce experiments from papers)
• a few cosmetic fixes

A few minor extensions/bug fixes

• A few minor bug fixes
• A few minor extensions needed for auto-tuning and learning

Stable version, released to collaborators

• Adding many user-friendly functions
• Ading basic CK web browser (shared ck-web repo). See demo: http://cknowledge.org/repo
• Small bug fixes

Stable version, released to collaborators

Stable version, released to collaborators