sysPass 2.0-beta Improvements

• [FIX] Solves #371. Wrong condition for using Apache headers. Thanks to @lukasp2 for the feedback
• [FIX] Fixed issue when importing accounts from CSV file, the password wasn't encrypted. Solves #373. Thanks to @anoges for the feedback
• [MOD] Closes  #378. Search form behavior modified. Focus is not reset to the first field. Thanks to @basil-twisleton for the feedback
• [MOD] Improved XML import from KeePass
• [MOD] Improved error handling
• [MOD] Improved batch item actions handling
• [MOD] Improved actions behavior
• [ADD] Add some import help and update translations