New smartstore actions: getSoupIndexSpecs and alterSoup
Added reIndexSoup and clearSoup methods to plugin
MockSmartStore can now properly simulate alter / reIndex operations
Added tests for alterSoup / reIndexSoup and clearSoup
Removing unused param
Regenerate com.salesforce.plugin.smartstore.js
Merge pull request #172 from wmathurin/smartstore_reindex

New smartstore actions: getSoupIndexSpecs and alterSoup