Added image cropper widget for user images.

* Also added a validator for processed images.
Fix issues with PDF/XLS/RSS exports, Reports Show/Hide button with wrong label, Fix HRM issues
Bug fix (?)
Single-component must not return multi-value.
Display an analysis of the time taken
This calculates the average time taken to run each URL in the smoke test and plots this for each successful run of the smoke tests.
Fixed quotes in zh-tw.py
Merge pull request #355 from aviraldg/fix-1295

Added string escapes in l10.js (fixes #1295)
Merge branch 'master' of git://github.com/graeme-f/eden
#1392 Support for joining table more than once using alias and filter in add_component
S3ContingencyTable: Get custom layer labels from report options.
Merge branch 'master' of https://github.com/liezl200/eden
PDF Codec: don't include extra_fields.
Merge branch 'master' of git://github.com/flavour/eden
Several fixes, cleanup.
Disable weak unit test, cleanup component table aliasing, other fixes.
HRM/Org import/menu tweaks. Show # Recipients when sending msg to multiple.
Merge branch 'master' of git://github.com/nursix/eden
Created a script to check translation files for possible character escape issues.
Restrict message options to those available for a person & redirect if none are.
Merge pull request #358 from aviraldg/checkesc

Created a script to check translation files for possible character escap...