Merge pull request #518 from nabinhait/v4-hotfix

testcase fixes
fix clear cache for Guest home page
clear guest session the correct way
translate to english if no lang
set hash as autoname for Notification Count
Merge pull request #519 from pdvyas/hotfix-website-clear-cache

Misc fixes
remove validate_previous_idx_exists in website route
Fixed unicode issue in page.py, render pre blocks of standard email template in monospace
Merge pull request #520 from anandpdoshi/hotfix

Fixed unicode issue in page.py, render pre blocks of standard email temp...
force deletion of old routes
ignore route links while updating sitemap
ignore route links while updating sitemap
minor fixes to website
fixes frappe/erpnext#1629
Merge pull request #522 from nabinhait/v4-hotfix

update custom reports for renamed fields
Fixed check if patch already executed
Fixed naming.py
Run sync_fixtures when installing app
Merge pull request #521 from anandpdoshi/hotfix

Fixed naming.py & sync fixtures in install app
Custom reports route from moduleview page