Issue #12 Patch: regex.inc

[VasasA]

regex.inc can replace more functions: #12

[docwilmot]

Apart from the coding standards suggestions @klonos made, I don't think these conversions can be mapped exactly as suggested. For example a hook_page_build() implementation cant just be renamed to hook_preprocess_page() as the two function would have been doing different things, and it would be entirely possible the D7 site would have had both functions. I'm similarly not sure about the backdrop_sort() switches, but havent checked. In all this still needs some work.

[VasasA]

@docwilmot Please ignore and close my PR, and use the replacements only what are sure to work. For example: hook_library() -> hook_library_info()
https://api.backdropcms.org/change-records/hooklibrary-and-hooklibraryalter-have-been-renamed-hooklibraryinfo-and

[bugfolder]

Closing this PR and making selected changes from it in PR #67.