Several fixes and improvements
* Add Topic model * Add PDB post-mortem debugging * Add logger to plugins (`self.log`) * Add NLTK resource auto-download * Force installation of requirements even if adding doesn't work * Add a method to find files in several possible locations. Now the plugin.open method will try these locations IF the file is to be opened in read mode. Otherwise only the SENPY_DATA folder will be used (to avoid writing to the package folder).
Showing with 92 additions and 52 deletions