needs to get incremented on releases as well

contains the sample SQL schema with version string

Makefile

@@ -2,7 +2,7 @@
 
 CURRENT_VERSION = 1.5.2
 VERSION ?= 1.5.3
-VERSION_FILES = index.php bin/ cfg/ *.md css/ i18n/ img/ js/package.json js/privatebin.js lib/ Makefile tpl/ tst/
+VERSION_FILES = index.php bin/ cfg/ *.md doc/Installation.md css/ i18n/ img/ js/package.json js/privatebin.js lib/ Makefile tpl/ tst/
 REGEX_CURRENT_VERSION := $(shell echo $(CURRENT_VERSION) | sed "s/\./\\\./g")
 REGEX_VERSION := $(shell echo $(VERSION) | sed "s/\./\\\./g")